[email protected] 3226 / 4766...
TRANSCRIPT
1
SITOR
Semiconductor Protection Fuses
Selection and Engineering Documents
Order No.: 3ZX1015-0NC00-1AB1
Edition 05/2003
Applicationsand Standards
Ordering andEngineering Data
Characteristicsand Dimension Drawings
Technical Descriptionand Terminology
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
2
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
3
Applicationsand Standards
Features
Possible arrangements
Standards
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
4
Applications Features
SITOR fuse links protect converters against short-circuit.
The power semiconductors used in these devices (diodes, thyristors, GTOs
and others) require fast-switching elements to protect them as a result of
their low thermal capacity. SITOR fuse links are admirably suited for this
type of application (fuse links for semiconductor protection with super-fast
characteristics).
The following fault situations involving short-circuits can occur:
• Internal short-circuit:A defective semiconductor compo-nent causes a short-circuit within the converter
• External short-circuit:A fault in the load causes a short-cir-cuit at the output of the converter
• Inverter commutation faults:If the converter control fails when in the inverter mode (commutation faults), then the converter circuit forms a short-circuit connection be-tween the DC voltage and AC voltage supply.
Fuse links can be arranged in various ways within the converter circuit. A dif-ferentiation is made between the phase fuses in the three-phase feeder cables as well as, if required, DC current fuses and branch fuses in the branches of the converter circuit (diagrams 5-1 to 5-6). For center-tap circuit configurations, fuse links can only be located in the three-phase feeder cables as phase fuses.
When using SITOR fuse links, utilization Category aR, the overload protection of the converters up to approx. 350% of the rated current is handled using conventional protective devices (e.g. thermally delayed overload relays). For closed-loop converters, overload protection is provided by the current limiting (exception: general-purpose fuses).
3NE1...-0 SITOR fuse links, utilization Category gS are, in addition to providing semiconductor protection, also de-signed for overload and short-circuit protection for cables, conductors and busbars. All of the other double func-tion fuses belonging to the SITOR series have gR characteristics. Overload pro-tection is guaranteed if the rated cur-rent of the 3NE1..-0 SITOR fuse link is selected corresponding to In ≤ Iz (DIN VDE 0100 Part 430).
The rules as laid-down in DIN VDE 0100 Part 430 must be applied when dimen-sioning the fuse links to provide short-circuit protection for cables, con-ductors and busbars.
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
5
ApplicationsPossible arrangements
Fig.5-1
Six-pulse bridge circuit B6 with branch fuses
DA
94-5
048
Fig.5-2
Six-pulse bridge circuit B6 with phase fuses and DC fuses (reversing connection)
DA
94-5
051
( ) ( )
Fig.5-3
Six-pulse bridge circuit B6 with phase fuses and DC fuses (converter circuit)
DA
94-5
050
Fig.5-4
Six-pulse bridge circuit B6 with branch fuses
DA
94-5
049
Fig.5-5
Six-pulse bridge circuit B6 with branch fuses (reversing connection)
DA
94-5
052
( ) ( )
Fig.5-6
Three-phasebidirectional circuit W3 with phase fuses with branch fuses
DA
94-5
053
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
6
Important Information
Standards
SITOR fuse links comply with the follow-ing Standards and regulations:
• DIN VDE 0636, Part 40
• IEC 60 269-4
When appropriately noted in Sections 2 and 3 ’Ordering and engineering data’ and ’Characteristics and dimension drawings’, SITOR fuse links also fulfill the following Standards and regula-tions:
• IEC 60 269-2-1VDE 0636/201(for insertion in l.v.h.b.c. fuse bases according to VDE 0636/201 as well as in fused-switch disconnectors and dis-connectors with fuses)
• u
The following Sitor fuse links and l.v.h.b.c. fuse bases are u recognized:
• IEC 60 269-4-1VDE 0636/401(for bolting to busbars) SITOR fuse links, Sizes 1 to 3 with an inside cali-per of 110 mm can also be inserted in l.v.h.b.c. fuse bases according to IEC 60 269-2-1 as well as in fused switch disconnectors and switch dis-connectors with fuses.
•All of the SITOR fuse links with rated voltages Vn ≤1000 V have the CE marking in compliance with the Low-Voltage Directive 73/23/EEC. The CE marking confirms that the products are in compliance with the require-ments as laid down in the Directive.
Environmentally-friendly recycling
In 1995, seven German manufacturers of l.v.h.b.c./h.v.h.b.c. fuse links founded a non-profit association.
l.v.h.b.c./h.v.h.b.c. Recycling
The objective is to practically and sensi-bly recycle fuse links and to define an acceptable disposal concept which ful-fills all of the requirements of today's environmental protection legislation.
The used fused links are collected, sorted and then recycled without the packaging; materials which have been melted and recovered are then recycled.
According to the rules and regulations of the association, excess funds from the recycling process are donated to a university to promote research in the area of fuse links.
More detailed information is available under:
http://www.nh-hh-recycling.de
Series Guide number
File number
3NC1 0..3NC1 4..3NC2 2..3NE1 ...3NE3 2..3NE3 3..3NE4 1..3NE8 0..-13NE8 7..-1
JFHR2 E167357
3NC1 1.. JDDZ E223216
3NC1 038-.3NC1 09.3NC1 49.3NC2 29.
IZLT2 E220063
3NH3 0303NH3 1203NH3 2303NH3 3303NH3 430
JFHR2 E171267
3NC1 451-13NC2 258-1
being processed
being processed
NH HH
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
7
Liability exclusion
The products described here were developed as part of a complete system or machine to assume safety-related functions. Generally, a complete safety-related system includes sensors, evaluation units, signaling devices and concepts for safe shutdown. It is the responsibility of the manufacturer of a plant or machine to ensure that his complete plant or machine functions correctly. Siemens AG, its regional offices and associated companies (known in the following as "Siemens") are able to guarantee all of the proper-ties and characteristics of a complete plant or machine which Siemens itself did not design.
Siemens does not accept any liability for the recommendations which are either provided or implicitly provided in the following document. The information in this document does not represent a new guarantee, warranty or liability claims which extend beyond Siemens general conditions of supply.
Caution
Only fully authorized and trained personnel may install and use fuses.
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
8
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
9
Ordering andEngineering Data
SITOR fuse links
SITOR fuse links for special applications
Accessories for l.v.h.b.c fuses
Accessories for cylindrical fuses
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
10
Ordering and Engineering Data
2.1 SITOR fuse links
Order No. Weightkg
Rated voltageVn
Rated current ClearingI 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NC2 423 3)
3NC2 425 3)
3NC2 427 3)
3NC2 428 3)
3NC2 431 3)
3NC2 432 3)
0.950.950.950.950.950.95
500500500500500500
––––––
150200250300350400
330006400099000
132000249000390000
3NC2 423-33NC2 425-33NC2 427-33NC2 428-33NC2 431-33NC2 432-3
0.950.950.950.950.950.95
500500500500500500
––––––
150200250300350400
330006400099000
132000249000390000
3NC8 423 3)
3NC8 425 3)
3NC8 427 3)
3NC8 431 3)
3NC8 434 3)
0.950.950.950.950.95
660660660660660
–––––
150200250350500
176003840070400
176000448000
3NC8 423-33NC8 425-33NC8 427-33NC8 431-33NC8 434-33NC8 444-3
0.950.950.950.950.950.95
660660660660660600
––––––
150200250350500
1000
176003840070400
176000448000
2480000
3NE3 221 2)
3NE3 222 2)
3NE3 224 2)
3NE3 225 2)
3NE3 227 2)
3NE3 230-0B 2)
3NE3 231 2)
3NE3 232-0B 2)
3NE3 233 2)
0.550.550.550.550.550.550.550.550.55
100010001000100010001000100010001000
–––––––––
100125160200250315350400450
48007200
13000300004800080000
100000135000175000
Table10-1
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however, contact blades are slotted according to IEC 60269-4-12) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’3) Special version with 2 longitudinal slots (not shown in the diagram)
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
11
Pre-arcingI 2t value
Power loss Utilization category
Cyclic load factorWL
Size according to IEC/EN 60 269-2-1or VDE 0636/201(or DIN 43 620)
Inside caliper according to IEC/EN 60 269-4-1or VDE 0636/401(or DIN 43 653)
Characteris-tics and dimension drawings
A2s W mm Section
70001360021000280005300083000
354050656050
gRgRgRgRaRaR
0.850.850.850.850.850.85
333333
––––––
3.1.13.1.13.1.13.1.13.1.13.1.1
70001360021000280005300083000
354050656050
gRgRgRgRaRaR
0.850.850.850.850.850.85
3 1)
3 1)
3 1)
3 1)
3 1)
3 1)
110110110110110110
3.1.13.1.13.1.13.1.13.1.13.1.1
110024004400
1100028000
40507295130
gRgRgRgRgR
0.850.850.850.850.85
33333
–––––
3.1.43.1.43.1.43.1.43.1.4
110024004400
1100028000
400000
40507295130140
gRgRgRgRgRaR
0.850.850.850.850.850.9
3 1)
3 1)
3 1)
3 1)
3 1)
3 1)
110110110110110110
3.1.43.1.43.1.43.1.43.1.43.1.4
6651040185041506650
13400166002260029500
283642425065758595
aRaRaRaRaRaRaRaRaR
0.950.951110.950.90.90.9
1 1)
1 1)
1 1)
1 1)
1 1)
1 1)
1 1)
1 1)
1 1)
110110110110110110110110110
3.1.143.1.143.1.143.1.143.1.143.1.153.1.153.1.153.1.15Kan
chan
Ene
terpr
ises
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
12
Order No. Weightkg
Rated voltageVn
Rated current ClearingI 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE3 332-0B 2)
3NE3 333 2)
3NE3 334-0B 2)
3NE3 335 2)
3NE3 336 2)
3NE3 337-8 2)
3NE3 338-8 2)
3NE3 340-8 2)
0.70.70.70.70.70.70.70.7
10001000100010001000
900800690
––––––––
400450500560630710800900
135000175000260000360000600000800000850000
1300000
3NE3 4213NE3 4303NE3 4323NE3 4343NE3 6263NE3 6353NE3 635-6 4)
3NE3 6363NE3 6373NE3 637-1
1.151.151.151.151.151.151.151.151.151.15
1000100010001000100010001000100010001000
––––––––––
100315400500224450450630710710
13500218000364000870000
54000488000488000
128000019500001950000
3NE4 101 2)
3NE4 102 2)
3NE4 117 2)
3NE4 118 2)
3NE4 120 2)
3NE4 121 2)
3NE4 122 2)
3NE4 124 2)
0.270.270.270.270.270.270.270.27
10001000100010001000100010001000
––––––––
3240506380
100125160
280500800
150030006000
1400029000
3NE4 327-0B3NE4 330-0B3NE4 333-0B3NE4 334-0B3NE4 337
0.70.70.70.70.7
800800800800800
–––––
250315450500710
2970060700
191000276000923000
Table12-2
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however, contact blades are slotted according to IEC 60269-4-12) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’3) M124) Diagram, refer to Section 4.2, 3NE6 4.., 3NE9 4..
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
13
Pre-arcingI 2t value
Power loss Utilization category
Cyclic load factorWL
Size according to IEC/EN 60 269-2-1or VDE 0636/201(or DIN 43 620)
Inside caliper according to IEC/EN 60 269-4-1or VDE 0636/401(or DIN 43 653)
Characteris-tics and dimension drawings
A2s W mm Section
22600295004610066400
104000149000184000223000
85909095
100105130165
aRaRaRaRaRaRaRaR
1111110.950.95
2 1)
2 1)
2 1)
2 1)
2 1)
2 1)
2 1)
2 1)
110110110110110110110110
3.1.163.1.163.1.163.1.163.1.163.1.163.1.163.1.16
18002900048500
1160007200
6500065000
170000260000260000
2580
1109585
110110132145145
aRaRaRaRaRaRaRaRaRaR
1111111111
3333333333
130130130130130130139130130140 3)
3.1.173.1.173.1.173.1.173.1.173.1.173.1.173.1.173.1.173.1.17
4075
120230450900
18003600
1213162022243035
gRgRgRaRaRaRaRaR
0.90.90.90.90.90.90.90.9
00000000
––––––––
3.1.133.1.133.1.133.1.133.1.133.1.133.1.133.1.13
36007400
2940042500
142000
105120140155155
aRaRaRaRaR
0.850.850.850.850.95
2 1)
2 1)
2 1)
2 1)
2 1)
110110110110110
3.1.123.1.123.1.123.1.123.1.12
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
14
Order No. Weightkg
Rated voltageVn
Rated current ClearingI 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE5 4243NE5 4263NE5 4303NE5 4313NE5 4333NE5 433-1
1.951.951.951.951.951.95
150015001500150015001500
––––––
160224315350450450
54000138000311000428000870000870000
3NE5 6273NE5 6333NE5 643
1.61.61.6
150015001500
–––
250450600
84000590000
1950000
3NE1 813-0 1)
3NE1 814-0 1)
3NE1 815-0 1)
3NE1 803-0 1)
3NE1 802-0 1)
3NE1 817-0 1)
3NE1 818-0 1)
3NE1 820-0 1)
0.130.130.130.130.130.130.130.13
690690690690690690690690
––––––––
1620253540506380
200430780
1700300044009000
18000
3NE1 021-0 1)
3NE1 022-0 1)
3NE1 022-2 1)
0.20.20.2
690690690
–––
100125125
330006300023000
3NE1 224-0 1)
3NE1 225-0 1)
3NE1 227-0 1)
3NE1 230-0 1)
0.550.550.550.55
690690690690
––––
160200250315
60000100000200000310000
3NE1 224-2 1)
3NE1 225-2 1)
3NE1 227-2 1)
3NE1 230-2 1)
0.550.550.550.55
690690690690
––––
160200250315
158404400068800
135500
Table14-3
1) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
15
Pre-arcingI 2t value
Power loss Utilization category
Cyclic load factorWL
Size according to IEC/EN 60 269-2-1or VDE 0636/201(or DIN 43 620)
Inside caliper according to IEC/EN 60 269-4-1or VDE 0636/401(or DIN 43 653)
Characteris-tics and dimension drawings
A2s W mm Section
7200184004150057000
116000116000
5680
115135145145
aRaRaRaRaRaR
11110.950.95
333333
210210210210210210
3.1.183.1.183.1.183.1.183.1.183.1.18
1120078500
260000
130160145
aRaRaR
111
333
170170170
3.1.193.1.193.1.19
184174
166295461903
1843
33.5455678
gR/gSgR/gSgR/gSgR/gSgR/gSgR/gSgR/gSgR/gS
11111111
000000000000000000000000
––––––––
3.1.53.1.53.1.53.1.53.1.53.1.53.1.53.1.5
310060003115
101113.5
gR/gSgR/gSgR
111
000000
–––
3.1.63.1.63.1.9
7400145002950046100
24273038
gR/gSgR/gSgR/gSgR/gS
1111
1111
––––
3.1.63.1.63.1.63.1.6
26505645
1152022580
30283542
gRgRgRgR
1111
1111
––––
3.1.93.1.93.1.93.1.9
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
16
Order No. Weightkg
Rated voltageVn
Rated current ClearingI 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE1 331-0 2)
3NE1 332-0 2)
3NE1 333-0 2)
3NE1 334-0 2)
0.70.70.70.7
690690690690
––––
350400450500
430000590000750000950000
3NE1 331-2 2)
3NE1 333-2 2)
3NE1 334-2 2)
0.70.70.7
690690690
–––
350450500
177000276000398000
3NE1 435-0 2)
3NE1 436-0 2)
3NE1 437-0 2)
3NE1 438-0 2)
0.950.950.950.95
690690690690
––––
560630710800
1700000235000034000005000000
3NE1 437-1 2)
3NE1 438-1 2)0.950.95
600600
––
710800
24600003350000
3NE1 435-2 2)
3NE1 436-2 2)
3NE1 447-2 2)
3NE1 437-2 2)
3NE1 438-2 2)
3NE1 448-2 2)
111111
690690690690690690
––––––
560630670710800850
84500013200001557000172500023480003381000
3NE7 4253NE7 4273NE7 4313NE7 4323NE7 6333NE7 633-13NE7 648-13NE7 6363NE7 636-13NE7 637-1
1.951.951.951.951.951.951.951.951.951.95
2000200020002000200020002000200020002000
––––––––––
200250350400450450525630630710
138000218000555000870000960000960000
1120000195000019500003110000
3NE9 632-13NE9 634-13NE9 636-1A
2.52.52.5
250025002500
–––
400500630
62000012700002800000
Table16-4
1) M122) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
17
Pre-arcingI 2t value
Power loss Utilization category
Cyclic load factorWL
Size according to IEC/EN 60 269-2-1or VDE 0636/201(or DIN 43 620)
Inside caliper according to IEC/EN 60 269-4-1or VDE 0636/401(or DIN 43 653)
Characteris-tics and dimension drawings
A2s W mm Section
5800084000
104000149000
42455356
gR/gSgR/gSgR/gSgR/gS
1111
2222
––––
3.1.73.1.73.1.73.1.7
295004610066400
446265
gRgRgR
111
222
–––
3.1.93.1.93.1.9
215000293000437000723000
50556059
gR/gSgR/gSgR/gSgR/gS
1111
3333
––––
3.1.73.1.73.1.73.1.7
321000437000
6572
gRgR
11
33
––
3.1.83.1.8
130100203000240000265000361000520000
606265728276
gRgRgRgRgRgR
111111
333333
––––––
3.1.103.1.103.1.103.1.103.1.103.1.10
184002900074000
116000128000128000149000260000260000415000
75110120150160160210220220275
aRaRaRaRaRaRaRaRaRaR
1111111111
3333333333
210210210210210210 1)
210 1)
210210 1)
210 1)
3.1.203.1.203.1.203.1.203.1.203.1.203.1.203.1.203.1.203.1.20
81000170000385000
205235275
aRaRaR
111
333
260 1)
260 1)
260 1)
3.1.213.1.213.1.21
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
18
Order No. Weightkg
Rated voltageVn
Rated current ClearingI 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE8 015-1 1)
3NE8 003-1 1)
3NE8 017-1 1)
3NE8 018-1 1)
3NE8 020-1 1)
3NE8 021-1 1)
3NE8 022-1 1)
3NE8 024-1 1)
0.20.20.20.20.20.20.20.2
690690690690690690690690
––––––––
2535506380
100125160
180400700
1400240042006500
13000
3NE8 714-13NE8 715-13NE8 701-13NE8 702-13NE8 717-13NE8 718-13NE8 720-13NE8 721-13NE8 722-13NE8 724-13NE8 725-13NE8 727-13NE8 731-1
0.130.130.130.130.130.130.130.130.130.130.130.130.13
690690690690690690690690690690690690690
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
20253240506380
100125160200250315
83140285490815
1550270049509100
17000300005500085500
3NC1 0033NC1 0063NC1 0083NC1 0103NC1 0123NC1 0163NC1 0203NC1 0253NC1 032
0.010.010.010.010.010.010.010.010.01
600600600600600600600600600
400400400400400400400400400
368
101216202532
8305070
120150260390600
3NC1 1033NC1 105
0.010.01
600600
––
35
––
Table18-5
1) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’2) CLASS CC
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
19
Pre-arcingI 2t value
Power loss Utilization category
Cyclic load factorWL
Size according to IEC/EN 60 269-2-1or VDE 0636/201(or DIN 43 620)
Inside caliper according to IEC/EN 60 269-4-1or VDE 0636/401(or DIN 43 653)
Characteris-tics and dimension drawings
A2s W mm Section
3070
120260450850
14002800
79
141619222838
gRgRgRgRaRaRaRaR
0.950.950.950.950.950.950.950.95
0000000000000000
––––––––
3.1.113.1.113.1.113.1.113.1.113.1.113.1.113.1.11
12194069
115215380695
1250235042007750
12000
79
1012151619242832374255
gRgRgRgRgRaRaRaRaRaRaRaRaR
0.90.90.90.90.90.950.90.950.950.90.90.90.85
000000000000000000000000000000000000000
80808080808080808080808080
3.1.23.1.23.1.23.1.23.1.23.1.23.1.33.1.33.1.33.1.33.1.33.1.33.1.3
3469
1525346095
1.21.522.533.54.867.5
aRaRaRaRaRaRaRaRaR
–––––––––
10 x 3810 x 3810 x 3810 x 3810 x 3810 x 3810 x 3810 x 3810 x 38
–––––––––
3.1.223.1.223.1.223.1.223.1.223.1.223.1.223.1.223.1.22
––
2.52
2)
2)––
10 x 3810 x 38
––
3.1.233.1.23
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
20
Order No. Weightkg
Rated voltageVn
Rated current ClearingI 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NC1 4013NC1 4023NC1 4033NC1 4043NC1 4053NC1 4063NC1 4103NC1 4153NC1 4203NC1 4253NC1 4303NC1 4323NC1 4403NC1 450
0.020.020.020.020.020.020.020.020.020.020.020.020.020.02
660660660660690690690690690690690690690690
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
123456
1015202530324050
––––
11–
222260
130150800980
1800
3NC1 5043NC1 5063NC1 516
0.020.020.02
690690690
46
16
–––
3NC2 2203NC2 2253NC2 2323NC2 2403NC2 2503NC2 2633NC2 2803NC2 200
0.060.060.060.060.060.060.060.06
690690690690690690690600
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
700 1)
20253240506380
100
370560850
1350112027005100
10000
Table20-6
1) u Recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
21
Pre-arcingI 2t value
Power loss Utilization category
Cyclic load factorWL
Size according to IEC/EN 60 269-2-1or VDE 0636/201(or DIN 43 620)
Inside caliper according to IEC/EN 60 269-4-1or VDE 0636/401(or DIN 43 653)
Characteris-tics and dimension drawings
A2s W mm Section
––––
1.6–
3.61026445895
110220
532.5–1.51.545.56797.689
aRaRaRaRaRaRaRaRaRaRaRaRaRaR
––––––––––––––
14 x 5114 x 5114 x 5114 x 5114 x 5114 x 5114 x 5114 x 5114 x 5114 x 5114 x 5114 x 5114 x 5114 x 51
––––––––––––––
3.1.243.1.243.1.243.1.243.1.243.1.243.1.243.1.253.1.253.1.253.1.253.1.253.1.253.1.25
–––
–––
gGgGgG
–––
14 x 5114 x 5114 x 51
–––
3.1.263.1.263.1.26
346095
185155310620
1250
4.65.678.59.5
1113.516
aRaRaRaRaRaRaRaR
––––––––
22 x 5822 x 5822 x 5822 x 5822 x 5822 x 5822 x 5822 x 58
––––––––
3.1.273.1.273.1.273.1.273.1.273.1.273.1.273.1.27
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
22
2.2 SITOR fuse links for special applications
Order No. Weightkg
Rated voltageVn
Rated current ClearingI 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NC5 531 1)
3NC5 838 1)
3NC5 840 1)
3NC5 841 1)
0.671.21.41.2
80010001000
800
350800600630
2600001728000
888000888000
3NC7 327-2 2)
3NC7 331-2 2)0.70.7
680680
––
250350
6350001430000
3NE3 525-5 3)
3NE3 535-5 3)0.70.7
10001000
––
200450
44000395000
3NE4 117-5 4)
3NE4 121-5 4)
3NE4 146-5 4)
0.280.280.28
10001000
800
–––
50100170
11007400
60500
Table22-7
1) For rectifiers in electrolysis systems (these are screwed onto water-cooled busbars)2) For traction feeder rectifiers3) For SITOR thyristor sets 6QG104) For SITOR thyristor sets 6QG11
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
23
Pre-arcingI 2t value
Power loss Utilization category
Cyclic load factorWL
Size according to IEC/EN 60 269-2-1or VDE 0636/201(or DIN 43 620)
Inside caliper according to IEC/EN 60 269-4-1or VDE 0636/401(or DIN 43 653)
Characteris-tics and dimension drawings
A2s W mm Section
66000360000185000185000
80170150145
aRaRaRaR
0.90.90.90.9
––––
––––
3.2.33.2.33.2.33.2.3
244000550000
2532
aRaR
0.90.9
––
––
3.2.53.2.5
715064500
5090
aRaR
0.850.85
––
––
3.2.13.2.1
135900
7370
203543
gRaRaR
0.850.850.85
–––
–––
3.2.13.2.13.2.1
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
24
Order No. Weightkg
Rated voltageVn
Rated current ClearingI 2t value
AC
V
DC
V
In
A
I 2tAat 1.0 x VnA2s
3NE4 327-6B 1)
3NE4 330-6B 1)
3NE4 333-6B 1)
3NE4 334-6B 1)
3NE4 337-6 1)
0.650.650.650.650.65
800800800800800
–––––
250315450500710
2970060700
191000276000923000
3NE6 437 2)
3NE6 444 2)
3NE9 440-6 2)
3NE9 450 2)
1.01.11.01.0
900900600600
––––
710900850
1250
620000192000024800002480000
3NE6 437-7 3)
3NE9 450-7 3)1.01.0
900600
––
7101250
6200002480000
Table24-8
1) For SITOR thyristor sets 6QG122) For air-cooled rectifiers in electrolysis systems3) For rectifiers in electrolysis systems (these are screwed onto water-cooled busbars)
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
25
Pre-arcingI 2t value
Power loss Utilization category
Cyclic load factorWL
Size according to IEC/EN 60 269-2-1or VDE 0636/201(or DIN 43 620)
Inside caliper according to IEC/EN 60 269-4-1or VDE 0636/401(or DIN 43 653)
Characteris-tics and dimension drawings
A2s W mm Section
36007400
2940042500
142000
105120140155155
aRaRaRaRaR
0.850.850.850.850.95
–––––
–––––
3.2.23.2.23.2.23.2.23.2.2
100000400000400000400000
150170
85210
gRaRgRaR
0.90.910.9
––––
––––
3.2.43.2.43.2.43.2.4
100000400000
150210
aRaR
0.90.9
––
––
3.2.43.2.4
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
26
2.3 Accessories for l.v.h.b.c fuses
Permissible loading and required connection cross-sections when used in l.v.h.b.c fuse bases and switch disconnectors
SITORfuse link
Rated current
Required cross-section of cables/busbars
l.v.h.b.c. fuse base Suitable puller
Fuse switch disconnector
Switch disconnector with fuses
Order No.
In
A mm2 Cu Order No.
max. currentA Order No. Order No.
max. currentA Order No.
max. currentA
3NC2 423/-33NC2 425/-33NC2 427/-33NC2 428/-33NC2 431/-33NC2 432/-3
150200250300350400
7095
120185240240
3NH3 430 2) 3) 150190240285330400
3NX1 011 3NP5 4 145180225255330400
3KL61 30 145180225255330400
3NC8 423/-33NC8 425/-33NC8 427/-33NC8 431/-33NC8 434/-3
150200250350500
7095
120240
2 x 150
135180250315450
135180225300425
135180225300425
Table26-9
1) When maintaining pollution degree 2 according to DIN VDE 0660 Part 100, the rated insulation voltage of 3KL, 3KM and 3NP switch disconnectors (designed for degree of pollution 3) is 1000 V
2) The maximum currents are valid for natural air cooling. With forced cooling v ≥ 1 m/s the fuses can be used with rated current In.
3) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
27
Permissible loading and required connection cross-sections when used in l.v.h.b.c fuse bases and switch disconnectors
SITORfuse link
Rated current
Required cross-section of cables/busbars
l.v.h.b.c. fuse base Suitable puller
Fuse switch disconnector
Switch disconnector with fuses
Order No.
In
A mm2 Cu Order No.
max. currentA Order No. Order No.
max. currentA Order No.
max. currentA
3NE1 813-03NE1 814-03NE1 815-03NE1 803-0
3NE1 802-03NE1 817-03NE1 818-0
16202535
405063
1.52.546
101016
3NH3 0301)/3NH4 030
16202535
405063
3NX1 011 3NP4 0/3NP5 0
16202535
405063
3KL50 30/3KM50 30
16202535
405063
3NE1 820-0 80 25 80 80 3KL52 30/3KM52 30
80
3NE1 021-03NE1 022-0
100125
3550
100125
3NP4 0/3NP5 0
100125
100125
3NE1 224-03NE1 225-03NE1 227-0
160200250
7095
120
3NH3 2301)/3NH4 230
160200250
3NP4 2/3NP5 2
160200250
3KL55 30/3KM55 30
160200250
3NE1 230-0
3NE1 331-03NE1 332-0
315
350400
2 x 70
2 x 952 x 95
3NH3 3301) 315
350400
3NP5 3 315
350400
3KL57 30/3KM57 30
315
350400
3NE1 333-03NE1 334-0
3NE1 435-03NE1 436-0
450500
560630
2 x 1202 x 120
2 x 1502 x 185
3NH3 4301) 450500
560630
3NP5 4 450500
560630
3KL61 30 450500
560630
3NE1 437-03NE1 438-0
3NE1 437-13NE1 438-1
710800
710800
2 x (50 x 5)2 x (50 x 5)
2 x (50 x 5)2 x (50 x 5)
3NH3 430
710800
690750
3NP5 43NP5 4
710800
690750
3KL62 710800
710800
3NE1 022-2 125 50 3NH3 030/3NH4 030
125 3NP4 0/3NP5 0
125 3KL52/3KM52
125
3NE1 224-23NE1 225-23NE1 227-2
160200250
7095
120
3NH3 230/3NH4 230
160200250
3NP4 2/3NP5 2
160200250
3KL553KM55
145180220
3NE1 230-23NE1 331-2
315350
2 x 702 x 95
3NH3 330 315350
3NP5 3 315350
3KL57/3KM57
280300
Table27-10
1) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’Kan
chan
Ene
terpr
ises
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
28
Permissible loading and required connection cross-sections when used in l.v.h.b.c fuse bases and switch disconnectors
SITORfuse link
Rated current
Required cross-section of cables/busbars
l.v.h.b.c. fuse base Suitable puller
Fuse switch disconnector
Switch disconnector with fuses
Order No.
In
A mm2 Cu Order No.
max. currentA Order No. Order No.
max. currentA Order No.
max. currentA
3NE1 333-23NE1 334-23NE1 435-23NE1 436-2
450500560630
2 x 1202 x 1202 x 1502 x 185
3NH3 430 450500560630
3NX1 011 3NP5 4
3NP5 4
450500560625
3KL61 450500560615
3NE1 447-23NE1 437-23NE1 438-23NE1 448-2
670710800850
2 x (40 x 5)2 x (40 x 5)2 x (50 x 5)2 x (30 x 8)
670710800850
3NP5 43NP5 43NP5 4
655685770820
3KL62 670700760790
3NE8 015-13NE8 003-13NE8 017-13NE8 018-1
25355063
46
1016
3NH3 0301)/3NH4 030
25355063
3NP4 0/3NP5 0
25354555
3KL50 303KM50 30
25354555
3NE8 020-13NE8 021-13NE8 022-13NE8 024-1
80100125160
25355070
80100125160
7085
100130
3KL52 30/3KM52 30
7085
100130
3NE4 327-0B3NE4 330-0B
250315
120240
3NH3 3302) 240300
3NP5 3 190250
3KL57 30/3KM57 30
170225
3NE4 333-0B3NE4 334-0B
450500
40 x 840 x 8
3NH3 4302) 425475
3NP5 4 420450
3KL61 301) 370425
3NE4 337 710 50 x 10 630 600 3KL62 600
3NE4 1013NE4 1023NE4 1173NE4 118
3NE4 1203NE4 1213NE4 1223NE4 124
32405063
80100125160
6101016
25355070
3NH3 1202)/3NH4 230
32405063
80100125160
3NP4 21)/3NP5 2
32405063
8095
120150
3KL55 30/3KM55 30
32405063
8095
120150
Table28-11
1) When maintaining pollution degree 2 according to DIN VDE 0660 Part 100, the rated insulation voltage of 3KL, 3KM and 3NP switch disconnectors (designed for degree of pollution 3) is 1000 V
2) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
29
Permissible loading and required connection cross-sections when used in l.v.h.b.c fuse bases and switch disconnectors
SITORfuse link
Rated current
Required cross-section of cables/busbars
l.v.h.b.c. fuse base Suitable puller
Fuse switch disconnector
Switch disconnector with fuses
Order No.
In
A mm2 Cu Order No.
max. currentA Order No. Order No.
max. currentA Order No.
max. currentA
3NE3 2213NE3 2223NE3 2243NE3 2253NE3 227
100125160200250
35507095
120
3NH3 230 2)/3NH4 230
100125160200250
3NX1 011 3NP4 2 1)/3NP5 2
90110140175210
3KL55 30/3KM55 30
90110140175210
3NE3 230-0B3NE3 2313NE3 232-0B3NE3 233
315350400450
185240240
2 x 150
3NH3 330 2) 305335380425
3NP5 3 285310330360
3KL57 30/3KM57 30
240265290320
3NE3 332-0B3NE3 3333NE3 334-0B3NE3 335
400450500560
2402 x 1502 x 1502 x 185
3NH3 430 2) 400450500560
3NP5 4 340380450510
3KL61 30 1) 340380440500
3NE3 3363NE3 337-83NE3 338-83NE3 340-8
630710800900
2 x 1852 x 2002 x 2002 x 240
630680700750
580630630630
3KL62 570640720800
Table29-12
1) When maintaining pollution degree 2 according to DIN VDE 0660 Part 100, the rated insulation voltage of 3KL, 3KM and 3NP switch disconnectors (designed for degree of pollution 3) is 1000 V
2) u recognized (U), for Guide Nos. and File Nos. of the Approval, refer to Section 1 ’Applications and Standards’
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
30
2.4 Accessories for cylindrical fuses
Permissible load and required connection cross-sections when using in cylindrical fuse bases and switch disconnectors
SITO
R fu
se li
nk
Rate
dcu
rren
t
Requ
ired
co
nn
ecti
oncr
oss-
sect
ion Cylindrical fuse base
Fuse
pu
ller
Cylindrical fuse disconnector
Order No.
In
A mm2 Cu
1-phase
Order No.
Imax
A
2-phase
Order No.
Imax
A
3-phase
Order No.
Imax
AOrder No.
1-phase
Order No.
Imax
A
2-phase
Order No.
Imax
A
3-phase
Order No.
Imax
A
3NC1 0033NC1 0063NC1 0083NC1 0103NC1 0123NC1 0163NC1 0203NC1 0253NC1 032
368
101216202532
1111.51.52.52.546
3NC1 038-1
368
101216202532
3NC1 038-2
368
101216202428
3NC1 038-3
368
101216202428
3NC1 000
3NC1 091
368
101216202532
3NC1 092
36
8101216202530
3NC1 093
368
101216202529
3NC1 1033NC1 105
35
11
35
35
35
35
35
35
3NC1 4013NC1 4023NC1 4033NC1 4043NC1 4053NC1 4063NC1 4103NC1 4153NC1 4203NC1 4253NC1 4303NC1 4323NC1 4403NC1 450
123456
1015202530324050
1111111.51.52.5466
1010
3NC1 451-1
123456
1015202530324050
3NC1 491
123456
1015202528313848
3NC1 492
123456
1015202427303746
3NC1 493
123456
1015202325303644
3NC1 5043NC1 5063NC1 516
46
16
112.5
46
16
46
16
46
16
46
16
3NC2 2203NC2 2253NC2 2323NC2 2403NC2 2503NC2 2633NC2 2803NC2 200
20253240506380
100
2.546
1010162535
3NC2 258-1
20253240506380
100
3NC2 291
2025324050607495
3NC2 292
2025323948587190
3NC2 293
2025323846566985
Table30-13
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
31
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
32
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
33
Characteristicsand Dimension Drawings
SITOR fuse links
SITOR fuse links for special applications
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
34
Characteristics3.1 SITOR fuse links
3.1.1 3NC2 4.. (IEC 60 269-2-1, Size 3), 3NC2 4..-3 (IEC 60 269-4-1, Size 3/110) 1)
Order No. 3NC2 4233NC2 423-3
3NC2 4253NC2 425-3
3NC2 4273NC2 427-3
3NC2 4283NC2 428-3
3NC2 4313NC2 431-3
3NC2 4323NC2 432-3
Utilization category (IEC 60 269) gR gR gR gR gR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
500150 2)
7000
3300026
350.850.95
500200 2)
13600
6400025
400.850.95
500250 2)
21000
9900030
500.850.95
500300 2)
28000
13200040
650.850.95
500350 2)
53000
24900035
600.850.95
500400 2)
83000
39000030
500.850.95
Accessories 3)
Fuse base, 1-poleFuse pullerFused switch disconnectorSwitch disconnector with fuses
3NH3 4303NX1 0113NP543KL61 30-1.B0
Table34-14
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however, contact blades are slotted according to IEC 60269-4-12) Cooling air velocity 1 m/s. For natural air cooling, reduced by 5 %3) Maximum current and minimum required connection cross-section when using fuse bases and
switch disconnectors, refer to Section 2.3
Fig.34-7
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
�vs
p
200A 300A 400A
150A 250A 350A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94-5
096b
Fig.34-8
Correction factor kA for clearing I2t value
Fig.34-9
Arc voltage
0 100 200 300 400 500 600�
1A
wRecovery voltage
Cor
rect
ion
fact
or 0.8
0.6
0.4
0.2
AD
A94
-500
0b
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000
s�
w
1400
1000
600
200
0
1800
Recovery voltage
Pea
k ar
c vo
ltage
AD
A94
-509
7b
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
35
3NC2 4..
3NC2 4..-3
Fig.35-10
Let-through characteristics (current limiting at 50 Hz)
Fig.35-11
Fig.35-12
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
300A350A
400A
250A 200A
150A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent
Prospective short-circuit current
AD
A94
-509
8b
70
60
1814
12
81
10
6
70
108
140
71.5
11.5
AD
A94
-513
3a-x
Dimensions in mm
18
70
60
12
1814
12
14
81
10
6
70
108
140
71.5
11.5
11.5
AD
A94
-513
3a-v
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
36
3.1.2 3NE8 7..-1 (IEC 60 269-4-1, Size 000/80) UOrder No. 3NE8 714-1 3NE8 715-1 3NE8 701-1 3NE8 702-1 3NE8 717-1 3NE8 718-1
Utilization category (IEC 60 269)
gR gR gR gR gR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6902012
8340
70.90.13
6902519
14040
90.90.13
6903240
28545
100.90.13
6904069
49055
120.90.13
69050115
81560
150.90.13
69063215
155070
160.950.13
Table36-15
Fig.36-13
Time/current characteristics
2 4 61x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
20A
40A
50A32A
63A25A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
A3N
E87
Fig.36-14
Correction factor kA for clearing I2t value
Fig.36-15
Arc voltage
0 100 200 300 400 500 600�
1
0.2
0.4
0.6
0.8
700 800
A
w
Cor
rect
ion
fact
or
AD
A94
-500
3a-v
Recovery voltage
200 400 500 600�
700 800100
s
w
300
1400
1200
1000
800
600
400
200
0
�P
eak
arc
volta
ge
AD
A94
-500
4a-v
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
37
Fig.37-16
Let-through characteristics (current limiting at 50 Hz)
Fig.37-17
2
�
1x10
2
4
6
c
2
1x103
1x104
1x105
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
p
�
4 6 4 6
40A50A
63A
32A 25A
20A
Prospective short-circuit current
Let-
thro
ugh
curr
ent
Unlimited peak values:DC component 50%DC component 0%
AD
A94
-500
5b
40
7798 53
36
39
2
20.8
19.7
8.5
8.5
AD
A94
-504
4a
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
38
3.1.3 3NE8 7..-1 (IEC 60 269-4-1, Size 000/80) UOrder No. 3NE8 720-1 3NE8 721-1 3NE8 722-1 3NE8 724-1 3NE8 725-1 3NE8 727-1 3NE8 731-1
Utilization category (IEC 60 269)
aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
69080380
270080
180.90.13
690100695
495075
190.950.13
6901251250
910080
230.950.13
6901602350
17000100
310.90.13
6902004200
30000120
360.90.13
6902507750
55000125
420.90.13
69031512 000
85 500150
540.850.13
Table38-16
Fig.38-18
Time/current characteristics
2 4 61x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
100A
200A
250A160A
315A80A 125A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current �
A3N
E8-2
Fig.38-19
Correction factor kA for clearing I2t value
Fig.38-20
Arc voltage
0 100 200 300 400 500 600�
1
700 800
A
w
Cor
rect
ion
fact
or
AD
A94
-500
3b
Recovery voltage
0.2
0.4
0.6
0.8
200 400 500 600
�
700 800100
s
w
300
1400
1200
1000
800
600
400
200
0
�P
eak
arc
volta
ge
AD
A94
-500
4b
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
39
Fig.39-21
Let-through characteristics (current limiting at 50 Hz)
Fig.39-22
2
A
1x10
2
4
6
c
2
1x103
1x104
1x105
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
p
A
4 6 4 6
80A
100A125A
160A200A
250A315A
�Prospective short-circuit current
Let-
thro
ugh
curr
ent Unlimited peak values:
DC component 50%DC component 0%
AD
A94
-500
5-v
40
7798 53
36
39
2
20.8
19.7
8.5
8.5
AD
A94
-504
4a
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
40
3.1.4 3NC8 4.. (IEC 60 269-2-1, Size 3), 3NC8 4..-3 (IEC 60 269-4-1, Size 3/110) 1)
Order No. 3NC8 4233NC8 423-3
3NC8 4253NC8 425-3
3NC8 4273NC8 427-3
3NC8 4313NC8 431-3
3NC8 4343NC8 434-3 3NC8 444-3
Utilization category (IEC 60 269)
gR gR gR gR gR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
660150 2)
1100
1760033
400.850.95
660200 2)
2400
3840046
550.850.95
6602504400
7040095
720.850.95
660350 2)
11000
17600065
950.850.95
660500 2)
28000
44800075
1300.850.95
6001000400000
2480000110
1400.90.95
Accessories 3)
Fuse base, 1-poleFuse pullerFused switch disconnectorSwitch disconnector with fuses
3NH3 4303NX1 0113NP543KL61 30-1AB0
–3NX1 011––
Table40-17
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however, contact blades are slotted according to IEC 60269-4-12) Cooling air velocity 1 m/s. For natural air cooling, reduced by 10 %3) Maximum current and minimum required connection cross-section when using fuse bases and
switch disconnectors, refer to Section 2.3
Fig.40-23
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
�
150A 250A 500A
350A 1000A
vs
p
200A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94-5
099b
Fig.40-24
Correction factor kA for clearing I2t value
Fig.40-25
Arc voltage
0 100 200 300 400 500 600�
700 800
w
1000A
150A - 500A
AC
orre
ctio
n fa
ctor
0.6
0.8
1
0.4
0.2
AD
A94
-500
8c
Recovery voltage
0 200 400 600
�
800 1000 1200
400
800
1200
1600
2000
s�
w
1400
1000
600
200
0
1800
1000A
150A - 500A
Recovery voltage
Pea
k ar
c vo
ltage
AD
A94
-510
0b
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
41
3NC8 4..
3NC8 4..-3
Fig.41-26
Let-through characteristics (current limiting at 50 Hz)
Fig.41-27
Fig.41-28
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
500A
250A 200A
150A
350A
1000A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent �
Prospective short-circuit current
AD
A94
-510
1c
70
60
1814
12
81
10
6
70
108
140
71.5
11.5
AD
A94
-513
3a-x
Dimensions in mm
18
70
60
12
1814
12
14
81
10
6
70
108
140
71.5
11.5
11.5
AD
A94
-513
3a-v
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
42
3.1.5 3NE1 8..-0 (IEC 60 269-2-1, Size 000) UOrder No. 3NE1813-0 3NE1814-0 3NE1815-0 3NE1803-0 3NE1802-0 3NE1817-0 3NE1818-0 3NE1820-0
Utilization category (IEC 60 269)
gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body) 1)
Power dissipation at In 1)
Cyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6901618
20025
3.01.00.13
6902041
43025
3.51.00.13
6902574
78030
4.01.00.13
69035166
170035
5.01.00.13
69040295
300030
5.01.00.13
69050461
440035
6.01.00.13
69063903
900040
7.01.00.13
690801843
1800040
8.01.00.13
Accessories 2)
Fuse base, 1-poleFuse base, 3-poleFuse pullerFused switch disconnector
3NH3 0303NH4 0303NX1 0113NP40/3NP50
Switch disconnector with fuses
3KL50 30-1.B003KM50 30-1.B00
3KL5230-1.B003KM5230-1.B00
Table42-18
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section2.3
Fig.42-29
Time/current characteristics
�
�p
vs
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10-1
64
2
1x10-2
64
2
1x10-3
16A 25A 40A 63A
20A 35A 50A 80A
1x10 1
2 4 6 8 1x10 2
2 4 6 8 1x10 3
2 4 6 8 1x10 4
Prospective short-circuit current
Virt
ual p
re-a
rcin
g tim
e
AD
A94
-508
7c
Fig.42-30
Correction factor kA for clearing I2t value
Fig.42-31
Arc voltage
0 100 200 300 400 500 600�
1
700 800
3NE 18...-0
A
w
Cor
rect
ion
fact
or 0.8
0.6
0.4
0.2
AD
A94
-508
5b
Recovery voltage
200 400 500 600�
700 800100 300
1400
1200
1000
800
600
400
200
0
�s
w
Pea
k ar
c vo
ltage
AD
A94
-508
6d
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
43
Fig.43-32
Let-through characteristics (current limiting at 50 Hz)
Fig.43-33
2
�
1x10
2
4
6
1
1x102
x101 x102 x10561 1 18 8
�
4 6 2x103184 6 2
x104184 6 2 4
2
4
6
1x103
2
4
6
1x104
2
4
6
1x105
80A
50A
35A
20A
63A
40A
25A
16A
p
c
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current
Let-
thro
ugh
curr
ent
AD
A94
-509
0c
15
21
6
20
10
40.5
79.9
53.8
50.3
2.3
35.8
53.3
AD
A94
-514
4a
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
44
3.1.6 3NE1 0..-0 (IEC 60 269-2-1, Size 00), 3NE1 2..-0 (IEC 60 269-2-1, Size 1) UOrder No. 3NE1 021-0 3NE1 022-0 3NE1 224-0 3NE1 225-0 3NE1 227-0 3NE1 230-0
Utilization category (IEC 60 269)
gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body) 1)
Power dissipation at In 1)
Cyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6901003100
3300036
101.00.20
6901256000
6300040
111.00.20
6901607400
6000060
241.00.55
69020014500
10000065
271.00.55
69025029500
20000075
301.00.55
69031546100
31000080
381.00.55
Accessories 2)
Fuse base, 1-poleFuse base, 3-pole
3NH3 0303NH4 030
3NH3 2303NH4 230
3NH3 330
Fuse puller 3NX1 011Fused switch disconnector
Switch disconnector with fuses
3NP403NP503KL52 30-1.B003KM52 30-1.B00
3NP423NP523KL55 30-1.B003KM55 30-1.B00
3NP53
3KL57 30-1.B003KM57 30-1.B00
Table44-19
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.44-34
Time/current characteristics
2
46
2
46
2
46
2
46
2
46
�
�
vs
p
2
461x104
1x103
2
46
1x102
1x101
1x100
1x10-1
1x10-2
1x10-3
1x10 2
642 8 1x10 3
642 8 1x10 4
64 82 1x10 5
100A 160A 250A
125A 200A 315A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current �
AD
A94-5
127b
Fig.44-35
Correction factor kA for clearing I2t value
Fig.44-36
Arc voltage
0 100 200 300 400 500 600
�
1
700 800
3NE 10...-0
A
w
3NE 12...-0
Cor
rect
ion
fact
or
0.2
0.4
0.6
0.8
AD
A94
-512
8b
Recovery voltage
200 400 500 600�
700 800100 300
1400
1200
1000
800
600
400
200
0
�s
w
Pea
k ar
c vo
ltage
AD
A94
-508
6d
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
45
3NE1 0..-0 3NE1 2..-0
Fig.45-37
Let-through characteristics (current limiting at 50 Hz)
Fig.45-38
Fig.45-39
2
�
1x10
2
4
6
1
1x102
x101 x10 2 x10561 1 18 8
�
4 6 2x10 3184 6 2
x10 4184 6 2 4
2
4
6
1x103
2
4
6
1x104
2
4
6
1x105
315A250A
200A160A
125A100A
p
c
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current
Let-
thro
ugh
curr
ent
AD
A94
-508
9c
10
630
15
60 48
53
79
35.8
49.4
2.2
AD
A94
-513
6b
Dimensions in mm
10
6
52
25 52
3
73
135
40.5
63.5
66.5
AD
A94
-514
5a
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
46
3.1.7 3NE1 3..-0 (IEC 60 269-2-1, Size 2), 3NE1 4..-0 (IEC 60 269-2-1, Size 3) UOrder No. 3NE1
331-03NE1 332-0
3NE1 333-0
3NE1 334-0
3NE1 435-0
3NE1 436-0
3NE1 437-0
3NE1 438-0
Utilization category (IEC 60 269)
gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS gR/gS
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body) 1)
Power dissipation at In 1)
Cyclic load factor WLWeight. approx.
VAA2s
A2sK
W
kg
69035058000
43000075
421.00.7
69040084000
59000085
451.00.7
690450104000
75000085
531.00.7
690500149000
95000090
561.00.7
690560215000
170000065
501.00.95
690630293000
235000070
551.00.95
690710437000
340000068
601.00.95
690800723000
500000070
591.00.95
Accessories 2)
Fuse base, 1-pole 3NH3 330 3NH3 430Fuse puller 3NX1 011Fused switch disconnectorSwitch disconnector with fuses
3NP533KL57 30-1.B003KM57 30-1.B00
3NP543KL61 30-1AB0
3NP543KL62
Table46-20
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.46-40
Time/current characteristics
�
�
vs
p
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10-1
64
2
1x10-2
64
2
1x10-3
1x102
2 4 6 8 1x103
2 4 6 8 1x104
2 4 6 8 1x105
800A710A630A560A500A450A400A350A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A9
4-5
088
d
Fig.46-41
Correction factor kA for clearing I2t value
Fig.46-42
Arc voltage
0 100 200 300 400 500 600�
1
700 800
3NE1 3..-03NE1 4..-0
w
AC
orre
ctio
n fa
ctor 0.8
0.6
0.4
0.2
AD
A94
-512
6c
Recovery voltage
200 400 500 600�
700 800100 300
1400
1200
1000
800
600
400
200
0
�s
w
Pea
k ar
c vo
ltage
AD
A94
-508
6d
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
47
3NE1 3..-0 3NE1 4..-0
Fig.47-43
Let-through characteristics (current limiting at 50 Hz)
Fig.47-44
Fig.47-45
2
�
1x10
2
4
6
1
1x102
x101 x102 x10561 1 18 8
�
4 6 2x103184 6 2
x104184 6 2 4
2
4
6
1x103
2
4
6
1x104
2
4
6
1x105
630A560A
500A450A
400A350A
p
c
800A710A
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current �
Let-
thro
ugh
curr
ent �
AD
A94
-512
9d
10
6
60
25
72
3
73
149
6047.5
66.5
AD
A94
-514
6b
Dimensions in mm
10
6
70
68
70
151
32
73
60.4
82.1
2.5
AD
A94
-514
7
Dimensions in mmKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
48
3.1.8 3NE1 4..-1 (IEC 60 269-2-1, Size 3) UOrder No. 3NE1 437-1 3NE1 438-1
Utilization category (IEC 60 269)
gR gR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body) 1)
Power dissipation at In 1)
Cyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
600710321000
246000085
651.00.95
600800437000
335000095
721.00.95
Accessories 2)
Fuse base, 1-pole 3NH3 430Fuse puller 3NX1 011Fused switch disconnectorSwitch disconnector with fuses
3NP543KL62 30
Table48-21
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.48-46
Time/current characteristics
�
�
vs
p
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10-1
64
2
1x10-2
64
2
1x10-3
1x102
2 4 6 8 1x103
2 4 6 8 1x104
2 4 6 8 1x105
800A710A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A9
4-5
088
c-v
Fig.48-47
Correction factor kA for clearing I2t value
Fig.48-48
Arc voltage
0 100 200 300 400 500 600
�
1
700 800
w
AC
orre
ctio
n fa
ctor 0.8
0.6
0.4
0.2
AD
A94
-512
6-v
Recovery voltage
200 400 500 600�
700 800100 300
1400
1200
1000
800
600
400
200
0
�s
w
Pea
k ar
c vo
ltage
AD
A94
-508
6-v
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
49
Fig.49-49
Let-through characteristics (current limiting at 50 Hz)
Fig.49-50
2
�
1x10
2
4
6
1
1x102
x101 x102 x10561 1 18 8
�
4 6 2x103184 6 2
x104184 6 2 4
2
4
6
1x103
2
4
6
1x104
2
4
6
1x105
p
c
800A710A
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current �
Let-
thro
ugh
curr
ent �
AD
A94
-512
9c-v
10
6
70
68
70
151
32
73
60.4
82.1
2.5
AD
A94
-514
7
Dimensions in mmKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
50
3.1.9 3NE1 0..-2 (Size 00), 3NE1 2..-2 (Size 1), 3NE1 3..-2 (Size 2), IEC 60 269-2-1 UOrder No. 3NE1
022-23NE1 224-2
3NE1 225-2
3NE1 227-2
3NE1 230-2
3NE1 331-2
3NE1 333-2
3NE1 334-2
Utilization category (IEC 60 269)
gR gR gR gR gR gR gR gR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body) 1)
Power dissipation at In 1)
Cyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6901253115
2300055
13.51.00.2
6901602650
1584070
301.00.55
6902005645
4400062
281.00.55
69025011520
6880070
351.00.55
69031522580
13550075
421.00.55
69035029500
17700082
441.00.7
69045046100
276000100
621.00.7
69050066400
398000100
651.00.7
Accessories 2)
Fuse base, 1-pole 3NH3 030 3NH3 230 3NH3 330 3NH3 340Fuse puller 3NX1 011Fused switch disconnectorSwitch disconnector with fuses
3NP503KL52
3NP523KL55
3NP533KL57
3NP543KL61
Table50-22
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.50-51
Time/current characteristics
2 4 6x102 x10 3 x10 4 x105
2 4 6 2 4 61 1 1 18 8 8
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10-1
64
2
1x10-2
64
2
1x10-3
�vs
�
125A160A
250A200A
350A315A
450A500A
3NE
10-2
1
p
A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
Fig.50-52
Correction factor kA for clearing I2t value
Fig.50-53
Arc voltage
0 100 200 300 400 500 600�
700 800
A
w
1
125A
160A
3NE
10-2
2
Cor
rect
ion
fact
or
A
0.8
0.6
0.4
0.2
Recovery voltage
0 200�
�
w
s
2000
1800
1000
800
400
200
400 600 800
3NE
10-2
3
0
160-315A
350A
125A
600
1200
1400
1600
1000 1200
A
Pea
k ar
c vo
ltage
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
51
3NE1 0..-2 3NE1 2..-2
3NE1 3..-2
Fig.51-54
Let-through characteristics (current limiting at 50 Hz)
Fig.51-55
Fig.51-56
Fig.51-57
21x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
x102 x10 3 x10 4 x1052 2 4 61 1 1 18 8 84 6 4 6
p
c�
3NE
10-2
4
�
A
Prospective short-circuit current
Let-
thro
ugh
curr
ent
Unlimited peak values:DC component 50%DC component 0%
10
630
15
60 48
53
79
35.8
49.4
2.2
AD
A94
-513
6b
Dimensions in mm
10
6
52
25 52
3
73
135
40.5
63.5
66.5
AD
A94
-514
5a
Dimensions in mm
10
6
60
25
72
3
73
149
6047.5
66.5
AD
A94
-514
6b
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
52
3.1.10 3NE1 4..-2 (IEC 60 269-2-1, Size 3) UOrder No. 3NE1 435-2 3NE1 436-2 3NE1 447-2 3NE1 437-2 3NE1 438-2 3NE1 448-2
Utilization category (IEC 60 269)
gR gR gR gR gR gR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body) 1)
Power dissipation at In 1)
Cyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
690560130000
84500080
601.01.0
690630203000
132000082
621.01.0
690670240000
155700090
651.01.0
690710265000
172500090
721.01.0
690800361000
234800095
821.01.0
690850520000
338100095
761.01.0
Accessories 2)
Fuse base, 1-pole 3NH3 340Fuse puller 3NX1 011Fused switch disconnectorSwitch disconnector with fuses
3NP543KL61
3NP543KL62
Table52-23
1) Temperature rise and power dissipation when used in an l.v.h.b.c. fuse base2) Minimum required connection cross-section when using the fuse base and switch disconnector, refer to Section 2.3
Fig.52-58
Time/current characteristics
2 4 6x102 x10 3 x10 4 x105
2 4 6 2 4 61 1 1 18 8 8
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10-1
64
2
1x10-2
64
2
1x10-3
�vs
�
560A630A
850A800A710A670A
3NE
14-2
1
p
A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
Fig.52-59
Correction factor kA for clearing I2t value
Fig.52-60
Arc voltage
0 100 200 300 400 500 600�
700 800
A
w
1
3NE
14-2
2
Cor
rect
ion
fact
or
A
0.8
0.6
0.4
0.2
Recovery voltage
0 200�
�
w
s
2000
1800
1000
800
400
200
400 600 800
3NE
14-2
3
0
600
1200
1400
1600
1000 1200
A
Pea
k ar
c vo
ltage
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
53
Fig.53-61
Let-through characteristics (current limiting at 50 Hz)
Fig.53-62
21x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
x102 x10 3 x10 4 x1052 2 4 61 1 1 18 8 84 6 4 6
p
c�
�
3NE
14-2
4
850A800A
710A670A
630A560A
A
Prospective short-circuit current
Let-
thro
ugh
curr
ent
Unlimited peak values:DC component 50%DC component 0%
10
6
70
68
70
151
32
73
60.4
82.1
2.5
AD
A94
-514
7
Dimensions in mmKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
54
3.1.11 3NE8 0..-1 (IEC 60 269-2-1, Size 00) UOrder No. 3NE8015-1 3NE8003-1 3NE8017-1 3NE8018-1 3NE8020-1 3NE8021-1 3NE8022-1 3NE8024-1
Utilization category (IEC 60 269)
gR gR gR gR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6902530
18035
70.950.20
6903570
40045
90.950.20
69050120
70065
140.950.20
69063260
140070
160.950.20
69080450
240080
190.950.20
690100850
420090
220.950.20
6901251400
6500110
280.950.20
6901602800
13000130
380.950.20
Accessories 1)
Fuse base, 1-poleFuse base, 3-poleFuse pullerFused switch disconnector
3NH3 0303NH4 0303NX1 0113NP403NP50
Switch disconnector with fuses 3KL50 30-1.B003KM50 30-1.B00
3KL52 30-1.B003KM52 30-1.B00
Table54-24
1) Max. current and min. required connection cross-section when using fuse bases and switch disconnector, refer to Section 2.3
Fig.54-63
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x10 0
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
�
p
vs
35A 63A 100A 160A
25A 50A 80A 125A
Prospective short-circuit current
Virt
ual p
re-a
rcin
g tim
e
AD
A94-5
131b
Fig.54-64
Correction factor kA for clearing I2t value
Fig.54-65
Arc voltage
0 100 200 300 400 500 600�
1
700 800
A
w
Cor
rect
ion
fact
or 0.8
0.6
0.4
0.2
AD
A94
-513
2b
Recovery voltage
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000
s�
w
1400
1000
600
200
0
1800
Pea
k ar
c vo
ltage
AD
A94
-514
8b
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
55
Fig.55-66
Let-through characteristics (current limiting at 50 Hz)
Fig.55-67
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x10 3 x10 4 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
25A
35A
63A80A
100A125A
160A
50A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent
Prospective short-circuit current �
AD
A94
-502
8b
10
630
15
60 48
53
79
35.8
49.4
2.2
AD
A94
-513
6b
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
56
3.1.12 3NE4 3..-0B, 3NE4 337 (IEC 60 269-4-1, Size 2/110) 1)
Order No. 3NE4 327-0B 3NE4 330-0B 3NE4 333-0B 3NE4 334-0B 3NE4 337
Utilization category (IEC 60 269)
aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
8002503600
29700175
1050.850.7
8003157400
60700170
1200.850.7
80045029400
191000190
1400.850.7
80050042500
276000195
1550.850.7
800710142000
923000170
1550.950.7
Accessories 2)
Fuse base, 1-pole 3NH3 330 3NH3 430Fuse puller 3NX1 011Fused switch disconnectorSwitch disconnector with fuses
3NP533KL57 30-1.B003KM57 30-1.B00
3NP543KL61
3NP543KL62
Table56-25
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however contact blades are slotted according to IEC 60269-4-12) Max. current and min. required connection cross-section when using fuse bases and switch disconnector, refer to Section 2.3
Fig.56-68
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
250A
�
315A
450A
500A
710A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current �
AD
A94-5
102b
Fig.56-69
Correction factor kA for clearing I2t value
Fig.56-70
Arc voltage
0 100 200 300 400 500 600�
700 800
450A
315A
A
w
Cor
rect
ion
fact
or
1
0.2
0.4
0.6
0.8
AD
A94
-500
9b
Recovery voltage
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000�
1400
1000
600
200
0
1800
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-510
3b
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
57
Fig.57-71
Let-through characteristics (current limiting at 50 Hz)
Fig.57-72
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
500A
250A
710A
315A
450A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent �
Prospective short-circuit current �
AD
A94
-510
4b
60
7148
10
6
60
10.5
14.5
11.5
12.5
14.5
11.5
12.5
107.5
141.5
73.5 10.5
AD
A94-5
134a
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
58
3.1.13 3NE4 1.. (IEC 60 269-2-1, Size 0) UOrder No. 3NE4 101 3NE4 102 3NE4 117 3NE4 118 3NE4 120 3NE4 121 3NE4 122 3NE4 124
Utilization category (IEC 60 269)
gR gR gR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
10003240
28045
120.90.27
10004075
50050
130.90.27
100050120
80065
160.90.27
100063230
150078
200.90.27
100080450
300082
220.90.27
1000100900
600085
240.90.27
10001251800
14000100
300.90.27
10001603600
29000120
350.90.27
Accessories 1)
Fuse base, 1-poleFuse base, 3-poleFuse pullerFused switch disconnectorSwitch disconnector with fuses
3NH3 1203NH4 2303NX1 0113NP42, 3NP523KL55 30-1.B003KM55 30-1.B00
Table58-26
1) Max. current and min. required connection cross-section when using fuse bases and switch disconnector, refer to Section 2.3
Fig.58-73
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x10 0
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
�vs
p
125A32A 50A 80A
40A 63A 100A 160A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94-5
105b
Fig.58-74
Correction factor kA for clearing I2t value
Fig.58-75
Arc voltage
0 200 400 600�
1
800 1000
A
w
Cor
rect
ion
fact
or 0.8
0.6
0.4
0.2
AD
A94
-501
0b
Recovery voltage
0 200 400 600�
800 1000 1200
500
1000
1500
2000
2500�
0
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-510
6b
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
59
Fig.59-76
Let-through characteristics (current limiting at 50 Hz)
Fig.59-77
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x10 52 2 4 61 1 1 18 8 8
�
4 6 4 6
63A
32A
80A
40A
50A
125A
100A
160A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent �
Prospective short-circuit current �
AD
A94
-510
7b
DA
94-5
135a
35 4758
125
65
10
6
30
1514
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
60
3.1.14 3NE3 22. (IEC 60 269-4-1, Size 1/110) 1) UOrder No. 3NE3 221 3NE3 222 3NE3 224 3NE3 225 3NE3 227
Utilization category (IEC 60 269)
aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
1000100665
480065
280.950.55
10001251040
720070
360.950.55
10001601850
1300090
421.00.55
10002004150
3000080
421.00.55
10002506650
4800090
501.00.55
Accessories 2)
Fuse base, 1-poleFuse base, 3-poleFuse pullerFused switch disconnectorSwitch disconnector with fuses
3NH3 2303NH4 2303NX1 0113NP42, 3NP523KL55 30-1.B003KM55 30-1.B00
Table60-27
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however contact blades are slotted according to IEC 60269-4-12) Max. current and min. required connection cross-section when using fuse bases and switch disconnector, refer to Section 2.3
Fig.60-78
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
�vs
p
125A 200A
250A160A100A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94
-501
1c
Fig.60-79
Correction factor kA for clearing I2t value
Fig.60-80
Arc voltage
0 200 400 600�
1
800 1000
w
AC
orre
ctio
n fa
ctor
0.2
0.4
0.6
0.8
AD
A94
-501
3b
Recovery voltage
0 200 400 600�
800 1000 1200
�
w
s
2500
2000
1500
1000
500
AD
A94
-501
5b
Pea
k ar
c vo
ltage
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
61
Fig.61-81
Let-through characteristics (current limiting at 50 Hz)
Fig.61-82
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x10 3 x10 4 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
100A
125A160A
200A250A
p
c
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current
Let-
thro
ugh
curr
ent
AD
A94
-501
6b
31135
52
52 DA
94-5
045x
-a
6 73
10 110
12.5
12.5
10.5
A
12.5
40.5
13.5
10.5
63.5
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
62
3.1.15 3NE3 23. (IEC 60 269-4-1, Size 1/110) 1) UOrder No. 3NE3 230-0B 3NE3 231 3NE3 232-0B 3NE3 233
Utilization category (IEC 60 269)
aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
100031513400
80000100
650.950.55
100035016600
100000120
750.90.55
100040022600
135000140
850.90.55
100045029500
175000130
950.90.55
Accessories 2)
Fuse base, 1-poleFuse pullerFused switch disconnectorSwitch disconnector with fuses
3NH3 3303NX1 0113NP533KL57 30-1.B003KM57 30-1.B00
Table62-28
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however contact blades are slotted according to IEC 60269-4-12) Max. current and min. required connection cross-section when using fuse bases and switch disconnector, refer to Section 2.3
Fig.62-83
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
�
400A
450A
315A
350A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94
-501
2b
Fig.62-84
Correction factor kA for clearing I2t value
Fig.62-85
Arc voltage
0 200 400 600�
1
800 1000
w
AC
orre
ctio
n fa
ctor
0.2
0.4
0.6
0.8
AD
A94
-501
3b
Recovery voltage
0 200 400 600�
800 1000 1200
�
w
s
2500
2000
1500
1000
500
AD
A94
-501
5b
Pea
k ar
c vo
ltage
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
63
Fig.63-86
Let-through characteristics (current limiting at 50 Hz)
Fig.63-87
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x10 3 x10 4 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
400A450A
350A
315A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent �
Prospective short-circuit current
AD
A94
-501
7b
31135
52
52 DA
94-5
045x
-a
6 73
10 110
12.5
12.5
10.5
A
12.5
40.5
13.5
10.5
63.5
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
64
3.1.16 3NE3 3.. (IEC 60 269-4-1, Size 2/110) 1) UOrder No. 3NE3 332-0B 3NE3 333 3NE3 334-0B 3NE3 335 3NE3 336 3NE3 337-8 3NE3 338-8 3NE3 340-8
Utilization category (IEC 60 269)
aR aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
100040022600
135000120
851.00.7
100045029500
175000125
901.00.7
100050046100
260000115
901.00.7
100056066400
360000120
951.00.7
1000630104000
600000110
1001.00.7
900710149000
800000125
1051.00.7
800800184000
850000140
1300.950.7
690900223000
1300000160
1650.950.7
Accessories 2)
Fuse base, 1-poleFuse pullerFused switch disconnector
3NH3 4303NX1 0113NP54
Switch disconnector with fuses 3KL61 30-1AB0 3KL62
Table64-29
1) Envelope dimension and pullers correspond to IEC 60269-2-1; however contact blades are slotted according to IEC 60269-4-12) Max. current and min. required connection cross-section when using fuse bases and switch disconnector, refer to Section 2.3
Fig.64-88
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x104 x1052 4 6 2 4 61 1 1 18 8 8
�
450A
500A
400A
560A
630A
710A
800A
vs
p
900A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94
-501
8b
Fig.64-89
Correction factor kA for clearing I2t value
Fig.64-90
Arc voltage
0 200 400 600�
1
800 1000
800A710A
400-630A
A
w
900AC
orr
ect
ion
fa
cto
r 0.8
0.6
0.4
0.2
AD
A94
-501
9c
Recovery voltage
0 200 400 600�
800 1000 1200
�
w
s
2500
2000
1500
1000
500
AD
A94
-501
5b
Pea
k ar
c vo
ltage
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
65
Fig.65-91
Let-through characteristics (current limiting at 50 Hz)
Fig.65-92
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x10 3 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
500A450A
560A
400A
p
c
800A
630A710A
900AUnlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current
Let-
thro
ugh
curr
ent
AD
A94
-502
0c
38
149
60
60
6
110
73
10
72
15 10.5
12.5
12.5
10.5
AD
A94
-504
5a
47.5
19.5
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
66
3.1.17 3NE3 4.., 3NE3 6.. (IEC 60 269-4-1, Size 3/130)
Order No. 3NE3 421 3NE3 626 3NE3 430 3NE3 432 3NE3 6353NE3 635-6
3NE3 434 3NE3 636 3NE3 637,3NE3 637-11)
Utilization category (IEC 60 269)
aR aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
10001001800
1350045
251.01.15
10002247200
54000140
851.01.15
100031529000
218000120
801.01.15
100040048500
364000130
1101.01.15
100045065000
488000150
1101.01.15
1000500116000
870000120
951.01.15
1000630170000
1280000136
1321.01.15
1000710260000
1950000170
1451.01.15
Table66-30
1) Inside caliper 140 mm, M 12-screw connection
Fig.66-93
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x103 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
�
100A
224A
315A
400A
450A
500A
630A
710A
vs
Prospective short-circuit current
AD
A94
-502
1b
Virt
ual p
re-a
rcin
g tim
e
p
Fig.66-94
Correction factor kA for clearing I2t value
Fig.66-95
Arc voltage
0 200 400 600�
1
800 1000
A
w
Cor
rect
ion
fact
or
0.2
0.4
0.6
0.8
AD
A94
-502
2b
Recovery voltage
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000�
1400
1000
600
200
0
1800
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-510
8bKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
67
3NE3 4.., 3NE3 6.., 3NE3 6..-1 3NE3 635-6
Fig.67-96
Let-through characteristics (current limiting at 50 Hz)
Fig.67-97
Fig.67-98
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x10 3 x10 4 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
710A630A
500A450A
400A315A
224A
100A
p
c
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current
Let-
thro
ugh
curr
ent
AD
A94
-502
3b
10
6
70
a
b
c
c70
60 81
141418
12
1418
12
91.5
AD
A94
-513
7a
Dimensions in mm
10
70
M10
�28
70 b
a
10
81.5 AD
A94
-516
3a
Dimensions in mm
Order No. a b c
3NE3 4..3NE3 6..3NE3 6..-1
128128138
160160170
11.511.513
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
68
3.1.18 3NE5 4.., 3NE5 433-1 (IEC 60 269-4-1, Size 3/210)
Order No. 3NE5 424 3NE5 426 3NE5 430 3NE5 431 3NE5 4333NE5 433-1
Utilization category (IEC 60 269)
aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
15001607200
5400075
561.01.95
150022418400
138000100
801.01.95
150031541500
311000125
1151.01.95
150035057000
428000150
1351.01.95
1500450116000
870000150
1450.951.95
Table68-31
Fig.68-99
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x10 0
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
�vs
p
224A
450A315A160A
350A
Prospective short-circuit current
Virt
ual p
re-a
rcin
g tim
e
AD
A94-5
109b
Fig.68-100
Correction factor kA for clearing I2t value
Fig.68-101
Arc voltage
0 500
�
1
15001000
w
AC
orre
ctio
n fa
ctor
0.2
0.4
0.6
0.8
AD
A94
-502
9b
Recovery voltage
0 400 800 1200�
1600 2000 2400
800
1600
2400
3200
4000�
2800
2000
1200
400
0
3600
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-511
0bKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
69
Fig.69-102
Let-through characteristics (current limiting at 50 Hz)
Fig.69-103
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
450A
315A 224A
160A
350A
p
c
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current �
Let-
thro
ugh
curr
ent �
AD
A94
-511
1b
10
6
70
208
a70
60 81
1418
12
1418
12
240a171.5
AD
A94
-513
8a
Dimensions in mm
Order No. a
3NE5 4..3NE5 4..-1
11.513
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
70
3.1.19 3NE5 6.. (IEC 60 269-4-1, Size 3/170)
Order No. 3NE5 627 3NE5 633 3NE5 643
Utilization category (IEC 60 269)
aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
150025011200
84000170
1301.01.6
150045078500
590000170
1601.01.6
1500600260000
1950000160
1451.01.6
Table70-32
Fig.70-104
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x10 0
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
�
250A
450A
600A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94-5
112b
Fig.70-105
Correction factor kA for clearing I2t value
Fig.70-106
Arc voltage
0 500
�
1
15001000
w
AC
orre
ctio
n fa
ctor
0.2
0.4
0.6
0.8
AD
A94
-502
9b
Recovery voltage
0 400 800 1200�
1600 2000 2400
800
1600
2400
3200
4000�
2800
2000
1200
400
0
3600
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-511
0bKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
71
Fig.71-107
Let-through characteristics (current limiting at 50 Hz)
Fig.71-108
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x10 2 x10 3 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
600A
250A
450A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent
Prospective short-circuit current
AD
A94
-511
3b
10
6
70
168
70
60 81
1418
12
1418
12
200
11.5
131.5 11.5
AD
A94
-513
9a
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
72
3.1.20 3NE7 4.., 3NE7 6.. (IEC 60 269-4-1, Size 3/210)
Order No. 3NE7425 3NE7427 3NE7431 3NE7432 3NE7633,3NE7633-1 1)
3NE7648-1 1) 3NE7636,3NE7636-1 1)
3NE7637-1 1)
Utilization category (IEC 60 269)
aR aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
200020018400
13800085
751.01.95
200025029000
218000110
1101.01.95
200035074000
555000105
1201.01.95
2000400116000
870000130
1501.01.95
2000450128000
960000165
1601.01.95
2000525149000
1120000210
2101.01.95
2000630260000
1950000200
2201.01.95
2000710415000
3110000230
2751.01.95
Table72-33
1) M 12-screw connection
Fig.72-109
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
�
710A630A525A450A400A
350A
250A
200A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94
-503
0c
Fig.72-110
Correction factor kA for clearing I2t value
Fig.72-111
Arc voltage
0�
1
20001000500 1500
A
w
Cor
rect
ion
fact
or 0.8
0.6
0.4
0.2
AD
A94
-503
1b
Recovery voltage
0 400 800 1200�
1600 2000 2400
800
1600
2400
3200
4000�
2800
2000
1200
400
0
3600
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-511
4bKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
73
Fig.73-112
Let-through characteristics (current limiting at 50 Hz)
Fig.73-113
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x10 3 x10 4 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
250A
200A
710A 630A
525A
400A, 450A
350A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent
Prospective short-circuit current
AD
A94
-503
2b
10
6
70
208
a70
60 81
1418
12
1418
12
240a171.5
AD
A94
-513
8a
Dimensions in mm
Order No. a
3NE7 4..3NE7 6..3NE7 6..-1
11.511.513
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
74
3.1.21 3NE9 6.. (IEC 60 269-4-1, Size 3/260)
Order No. 3NE9 632-1 3NE9 634-1 3NE9 636-1A
Utilization category (IEC 60 269)
aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
250040081000
620000160
2051.02.5
2500500170000
1270000180
2351.02.5
2500630385000
2800000198
2751.02.5
Table74-34
Fig.74-114
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
�
400A
500A
630A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94
-503
3b
Fig.74-115
Correction factor kA for clearing I2t value
Fig.74-116
Arc voltage
0�
1
20001200400 1600800 2400 2800
w
AC
orre
ctio
n fa
ctor
0.2
0.4
0.6
0.8
AD
A94
-503
4b
Recovery voltage
0 500 1000 1500�
2000 2500 3000
1000
2000
6000�
3000
4000
5000s
w
Pea
k ar
c vo
ltage
AD
A94
-503
5b
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
75
Fig.75-117
Let-through characteristics (current limiting at 50 Hz)
Fig.75-118
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x10 3 x10 4 x10 52 2 4 61 1 1 18 8 8
�
4 6 4 6
630A
500A
400A
p
c
Unlimited peak values:DC component 50%DC component 0%
Prospective short-circuit current
Let-
thro
ugh
curr
ent
AD
A94
-503
6b
10
6
70
255
70
60 81
1418
12
1418
12
220
287
13
13
DA
94-5
140a
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
76
3.1.22 3NC1 0.. (IEC 60 269-2-1/III, Size 10 x 38 mm) UOrder No. 3NC1 003 3NC1 006 3NC1 008 3NC1 010 3NC1 012 3NC1 016 3NC1 020 3NC1 025 3NC1 032
Utilization category (IEC 60 269)
aR aR aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
60033
830
1.2–0.01
60064
3030
1.5–0.01
60086
5025
2–0.01
600109
7040
2.5–0.01
6001215
12050
3–0.01
6001625
15060
3.5–0.01
6002034
26080
4.8–0.01
6002560
39090
6–0.01
6003295
600110
7.5–0.01
Table76-35
Fig.76-119
Time/current characteristics
2 4 6x100 x10 1 x10 2 x103
2 4 6 2 4 61 1 1 18 8 8
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10-1
64
2
1x10-2
64
2
1x10-3
6A8A
10A12A16A20A25A32A
3NC
10-1
3A
�vs
�p
A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
Fig.76-120
Correction factor kA for clearing I2t value
Fig.76-121
Arc voltage
0 100 200 300 400 500 600�
700 800
A
w
3NC
10-2
1
Cor
rect
ion
fact
or
A
0.8
0.6
0.4
0.2
Recovery voltage
0 100 200 300�
�
w
s
1400
1200
1000
800
6003N
C10
-3
400
200
400 500 600 700 800
A
Pea
k ar
c vo
ltage
V
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
77
Fig.77-122
Let-through characteristics (current limiting at 50 Hz)
Fig.77-123
2
�
1x10
2
4
6
1
1x102
1x103
1x10 4
2
4
6
2
4
6
2
x101 x10 2 x10 3 x1042 2 4 61 1 1 18 8 84 6 4 6
p
c
3NC
10-4
32A
16A20A25A
12A
8A10A
6A3A
2 4 6 8x1051 2
�
A
Prospective short-circuit current
Let-
thro
ugh
curr
ent
383N
C10
-5
9.5
A
10.2
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
78
3.1.23 3NC1 1.. (Size 10 x 38 mm, Midget Fuse)
Order No. 3NC1 103 3NC1 105
Utilization category (IEC 60 269)
CLASS CC CLASS CC
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6003
50
2.5
0.01
6005
45
2
0.01
Table78-36
Fig.78-124
Time/current characteristics
2
4
6
�
�
vs
p
1x10-1
1x10-2
1x10 0
642 8 1x10 1
642 8 1x10 2
64 82 1x10 3
3A
3NC
11-1
5A
2
4
6
1x10 0
2
4
6
1x10 1
2
4
6
1x102
2
A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
79
Fig.79-125
Let-through characteristics (current limiting at 50 Hz)
Fig.79-126
2
�
1x10
2
4
6
1
1x102
1x103
1x10 4
2
4
6
2
4
6
x101 x10 2 x10 3 x1042 2 4 61 1 1 18 8 84 6 4 6
p
c
3NC
11-4
5A
3A
2 4 6 8x1051 2
�
A
Prospective short-circuit current
Let-
thro
ugh
curr
ent
3NC
11-
5
6,5
3538
A
9.5
9.5
10.2
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
80
3.1.24 3NC1 4.. (IEC 60 269-2-1/III, Size 14 x 51) UOrder No. 3NC1 401 3NC1 402 3NC1 403 3NC1 404 3NC1 405 3NC1 406 3NC1 410
Utilization category (IEC 60 269)
aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6601–
–90
5–0.02
6602–
–30
3–0.02
6603–
–40
2.5–0.02
6604–
–50
––0.02
69051.6
1120
1.5–0.02
6906–
–30
1.5–0.02
690103.6
2250
4–0.02
Table80-37
Fig.80-127
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
246
2
46
2
46
2
46
2
46
x100 x10 1 x10 2 x1032 4 6 2 4 61 1 1 18 8 8
�
p
vs
1A2A3A4A5A
10A
3NC
14-1
a
6A
A
Prospective short-circuit current
Virt
ual p
re-a
rcin
g tim
e
Fig.80-128
Correction factor kA for clearing I2t value
Fig.80-129
Arc voltage
0 100 200 300 400 500 600�
700 800
A
w
1
3NC
14-2
a
Cor
rect
ion
fact
or
A
0.8
0.6
0.4
0.2
Recovery voltage
0 100 200 300�
�
w
s
1400
1200
1000
800
600
400
200
400 500 600 700 800
3NC
14-3
A
Pea
k ar
c vo
ltage
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
81
Fig.81-130
Let-through characteristics (current limiting at 50 Hz)
Fig.81-131
2
�
1x10
2
4
6
1x10
1x10
1x10
2
4
6
2
4
6
2
x101 x10 2 x10 3 x1042 2 4 61 1 1 18 8 84 6 4 6
p
c
2 4 6 8x1051 2
�
3NC
14-4
a
10A5A
1
2
3
4
A
Prospective short-circuit current
Let-
thro
ugh
curr
ent
3NC
14-5
10
A
50.8
14.3
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
82
3.1.25 3NC1 4.. (IEC 60 269-2-1/III, Size 14 x 51) UOrder No. 3NC1 415 3NC1 420 3NC1 425 3NC1 430 3NC1 432 3NC1 440 3NC1 450
Utilization category (IEC 60 269)
aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6901510
2260
5.5–0.02
6902026
6070
6–0.02
6902544
13080
7–0.02
6903058
15080
9–0.02
6903295
80080
7.6–0.02
69040110
980100
8–0.02
69050220
1800110
9–0.02
Table82-38
Fig.82-132
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
246
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
�
p
vs
3NC
14-1
b
25A30A32A40A50A
15A20A
A
Prospective short-circuit current
Virt
ual p
re-a
rcin
g tim
e
Fig.82-133
Correction factor kA for clearing I2t value
Fig.82-134
Arc voltage
0 100 200 300 400 500 600�
700 800
A
w
1
3NC
14-2
b
30A
32ACor
rect
ion
fact
or
A
0.8
0.6
0.4
0.2
Recovery voltage
0 100 200 300�
�
w
s
1400
1200
1000
800
600
400
200
400 500 600 700 800
3NC
14-3
A
Pea
k ar
c vo
ltage
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
83
Fig.83-135
Let-through characteristics (current limiting at 50 Hz)
Fig.83-136
2
�
1x10
2
4
6
1x10
1x10
1x10
2
4
6
2
4
6
2
x101 x10 2 x10 3 x1042 2 4 61 1 1 18 8 84 6 4 6
p
c
2 4 6 8x1051 2
�
1
2
3
4
3NC
14-4
b
50A
30A32A40A
25A
15A20A
A
Prospective short-circuit current
Let-
thro
ugh
curr
ent
3NC
14-5
10
A
50.8
14.3
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
84
3.1.26 3NC1 5.. (IEC 60 269-2-1/III, Size 14 x 51) UOrder No. 3NC1 504 3NC1 506 3NC1 516
Utilization category (IEC 60 269)
gG gG gG
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
690444
150–
1.0
0.02
690660
200–
1.15
0.02
69016250
85030
2.2
0.02
Table84-39
Fig.84-137
Time/current characteristics
2 4 6
�
1x10
46
-2
1x100
1x103
1x10 5
2
x100 x10 1 x10 2 x1032 4 6 2 4 61 1 1 18 8 8
�
p
vs
3NC
15
1x10-1
2
46
2
1x101
46
2
1x102
46
2
46
2
1x104
46
2
46
2
4A 6A
16A
A
Prospective short-circuit current
Virt
ual p
re-a
rcin
g tim
e
Fig.84-138
Correction factor kA for clearing I2t value
0 100 200 300 400 500 600�
700 800
A
w
3NC
15-2
1
Cor
rect
ion
fact
or
Recovery voltage
A
0.8
0.6
0.4
0.2
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
85
Fig.85-139
Let-through characteristics (current limiting at 50 Hz)
Fig.85-140
2
�
1x10
2
4
6
3NC
15-1
-1
1x100
1x101
1x10 2
2
4
6
2
4
6
x102 x103 x104 x1052 2 4 61 1 18 8 8
�
4 6 4 6
c
p
8
8
4A6A
16A
A
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent
Prospective short-circuit current
3NC
14-5
10
A
50.8
14.3
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
86
3.1.27 3NC2 2.. (IEC 60 269-2-1/III, Size 22 x 58) UOrder No. 3NC2 220 3NC2 225 3NC2 232 3NC2 240 3NC2 250 3NC2 263 3NC2 280 3NC2 200
Utilization category (IEC 60 269)
aR aR aR aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
6902034
37040
4.6–0.06
6902560
56050
5.6–0.06
6903295
85065
7–0.06
69040185
135080
8.5–0.06
69050155
112090
9.5–0.06
69063310
2700100
11–0.06
69080620
5100110
13.5–0.06
6001001250
10000110
16–0.06
Table86-40
Fig.86-141
Time/current characteristics
2 4 6x101 x10 2 x10 3 x104
2 4 6 2 4 61 1 1 18 8 8
1x104
64
2
1x103
64
2
1x102
64
2
1x101
64
2
1x100
64
2
1x10-1
64
2
1x10-2
64
2
1x10-3
�vs
�
3NC
22-1
20A25A32A40A
100A80A63A50A
p
A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
Fig.86-142
Correction factor kA for clearing I2t value
Fig.86-143
Arc voltage
0 100 200 300 400 500 600�
700 800
A
w
3NC
22-2
1
Cor
rect
ion
fact
or
A
0.8
0.6
0.4
0.2
Recovery voltage
0 100 200 300�
�
w
s
1400
1200
1000
800
6003N
C22
-3
400
200
400 500 600 700 800
A
Pea
k ar
c vo
ltage
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
87
Fig.87-144
Let-through characteristics (current limiting at 50 Hz)
Fig.87-145
21x10
2
4
6
2
1x103
1x104
2
4
6
x102 x10 3 x10 4 x1052 2 4 61 1 1 18 8 84 6 4 6
p
c
2
�
3NC
22-4
100A
50A63A80A
40A
25A32A
20A
�
A
Prospective short-circuit current
Let-
thro
ugh
curr
ent
3NC
22-5
1658
A
22.2
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
88
3.2 SITOR fuse links for special applications
3.2.1 3NE3 5..-5, 3NE4 1..-5
Order No. 3NE4 117-5 3NE4 121-5 3NE4 146-5 3NE3 525-5 1) 3NE3 535-5 1)
Utilization category (IEC 60 269)
gR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
100050135
110095
200.850.28
1000100900
7400135
350.850.28
8001707370
60500142
430.850.28
1000200 2)
7150
4400075
500.850.7
1000450 2)
64500
395000130
900.850.7
Table88-41
1) Maximum tightening torque M 10 blind tapping: 35 Nm, screw-in penetration depth ≥ 9mm2) Cooling air velocity 0.5 m/s. For natural air cooling, reduced by 5%
Fig.88-146
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x10 0
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x101 x10 2 x10 3 x1042 4 6 2 4 61 1 1 18 8 8
�vs
p
100A 200A
50A 170A 450A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current �
AD
A94-5
115b
Fig.88-147
Correction factor kA for clearing I2t value
Fig.88-148
Arc voltage
0 200 400 600�
1
800 1000
50, 100A
200, 450A
A
w
170A
Cor
rect
ion
fact
or
0.2
0.4
0.6
0.8
AD
A94
-503
7b
Recovery voltage
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000�
1400
1000
600
200
0
1800
< 170A
> 200A
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-511
6b
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
89
3NE3 5..-5 3NE4 1..-5
Fig.89-149
Let-through characteristics (current limiting at 50 Hz)
Fig.89-150
Fig.89-151
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
450A
50A
100A200A
170A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent ��
Prospective short-circuit current �
AD
A94
-511
7b
�
7755
15
60
73
60
M10
20
10.5
82.5
AD
A94
-514
1a
Dimensions in mm
66
47
52
53
3010
54
57
62
26
40
10.4
AD
A94
-514
2a
Dimensions in mmKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
90
3.2.2 3NE4 3..-6B, 3NE4 337-6
Order No. 3NE4 327-6B 1) 3NE4 330-6B 1) 3NE4 333-6B 1) 3NE4 334-6B 1) 3NE4 337-6 1)
Utilization category (IEC 60 269)
aR aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
8002503600
29700175
1050.850.65
8003157400
60700170
1200.850.65
80045029400
191000190
1400.850.65
80050042500
276000195
1550.850.65
800710142000
923000170
1550.950.65
Table90-42
1) Maximum tightening torque M 10 blind tapping: 35 Nm, screw-in penetration depth ≥ 9 mm
Fig.90-152
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
250A
�
315A
450A
500A
710A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current �
AD
A94-5
102b
Fig.90-153
Correction factor kA for clearing I2t value
Fig.90-154
Arc voltage
0 100 200 300 400 500 600�
1
700 800
450A
315A
A
w
Cor
rect
ion
fact
or 0.8
0.6
0.4
0.2
AD
A94
-503
8b
Recovery voltage
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000�
1400
1000
600
200
0
1800
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-510
3bKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
91
Fig.91-155
Let-through characteristics (current limiting at 50 Hz)
Fig.91-156
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
500A
250A
710A
315A
450A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent �
Prospective short-circuit current �
AD
A94
-510
4b
DA
94-5
165a
60
M10
�20
6060 7677
15
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
92
3.2.3 3NC5 531, 3NC5 8..
Order No. 3NC5 531 1) 3NC5 841 1) 3NC5 840 1) 3NC5 838 1)
Utilization category (IEC 60 269)
aR aR aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
800350 2)
66000
260000200
800.90.67
800630 2)
185000
888000110
1450.91.2
1000600 2)
185000
888000110
1500.91.4
1000800 2)
360000
1728000130
1700.91.2
Table92-43
1) Maximum tightening torque: - M 10 thread (with indicator): 40 Nm- M 10 blind tapping: 50 Nm, screw-in penetration depth ≥ 9 mm- M 24 x 1.5 thread: 60 Nm
2) Temperature of the water-cooled busbar, max. +45 °C
Fig.92-157
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x10 0
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
�vs
p
600A
630A 800A
350A
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current � �
AD
A94-5
118b
Fig.92-158
Correction factor kA for clearing I2t value
Fig.92-159
Arc voltage
0 200 400 600�
1
800 1000
A
w
630A600, 800A
350AC
orre
ctio
n fa
ctor 0.8
0.6
0.4
0.2
AD
A94
-503
9b
Recovery voltage
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000�
1400
1000
600
200
0
1800
600A800A
350A630A
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-511
9bKanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
93
3NC5 531 3NC5 8..
Fig.93-160
Let-through characteristics (current limiting at 50 Hz)
Fig.93-161
Fig.93-162
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
600A
800A630A
c
p
350A
Unlimited peak values:DC component 50%DC component 0%
Let-t
hrou
gh c
urre
nt
�
Prospective short-circuit current �
AD
A94
-512
0b
3NC
5531
50
M10
M10
2850
SW4191
9
A24.50.3
Dimensions in mm
DA
94-5
162a
73
M10
�40
M24
�
M10
SW41 ba c
11
Dimensions in mm
Order No. a b c
3NC5 8413NC5 8403NC5 838
98119
98
88.5109.5
88.5
2520.525
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
94
3.2.4 3NE6 4.., 3NE9 450, 3NE6 437-7, 3NE9 440-6, 3NE9 450-7
Order No. 3NE9 440-6 3NE9 450 3NE6 437 3NE6 444 3NE9 450-7 3NE6 437-7
Utilization category (IEC 60 269)
gR aR aR aR aR aR
Rated voltage VnRated current In 1)
Pre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
600850400000
248000074
851.01.0
6001250 2)
400000
248000080
2100.91.0
900710 2)
100000
62000080
1500.91.0
900900 2)
400000
192000080
1700.91.1
6001250 3)
400000
2480000105
2100.91.0
900710 3)
100000
620000110
1500.91.0
Table94-44
1) Maximum tightening torque M 10 blind tapping: 35 Nm, screw-in penetration depth ≥ 9 mm2) Cooling air velocity ≥ 2 m/s3) Lower (cooled) connection, max. +60 °C, upper connection (M 10) max. +110 °C
Fig.94-163
Time/current characteristics
4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x10 3 x10 42 4 6 2 41 18 8
850A
�
710A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current �
AD
A94
-504
0c
4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x100
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x10 3 x10 42 4 6 2 41 18 8
�
1250A
900A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94
-504
1b
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
95
3NE6 4.., 3NE9 4.., 3NE9 4..-6 3NE6 4..-7, 3NE9 4..-7
Fig.95-164
Correction factor kA for clearing I2t value
Fig.95-165
Let-through characteristics (current limiting at 50 Hz) Fig.95-166
Arc voltage
Fig.95-167
Fig.95-168
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
c
p
850A900A
1250A
710A
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent �
Prospective short-circuit current �
AD
A94
-512
2b
0 200 400 600�
1
800 1000
710A
900A
850, 1250A
A
w
Cor
rect
ion
fact
or 0.8
0.6
0.4
0.2
AD
A94
-504
2b
Recovery voltage
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000�
1400
1000
600
200
0
1800
710A900A
850A1250A
s
w
Pea
k ar
c vo
ltage
Recovery voltage
AD
A94
-512
1b
10
70
M10
�28
70 b
a
10
81.5 AD
A94
-516
3a
Dimensions in mm
Order No. a b
3NE9 440-63NE9 4503NE6 4373NE6 444
89898999
76767686
Dimensions in mm
70
M10
�28
70
100
125
�
83
10
11
10
81.5 AD
A94
-516
4a
75.5
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
96
3.2.5 3NC7 3..-2
Order No. 3NC7 327-2 3NC7 331-2
Utilization category (IEC 60 269)
aR aR
Rated voltage VnRated current InPre-arcing I2t value I2ts (tvs = 1 ms)Clearing I2t value I2tA at VnTemperature rise at In (center of the fuse body)Power dissipation at InCyclic load factor WLWeight, approx.
VAA2s
A2sK
W
kg
680250244000
63500045
250.90.7
680350550000
143000066
320.90.7
Table96-45
Fig.96-169
Time/current characteristics
2 4 6
�
1x10
2
46
-3
1x10-2
1x10-1
1x10 0
1x10 1
1x102
1x10
1x10 4
3
2
46
2
46
2
46
2
46
2
46
2
46
x102 x10 3 x10 4 x1052 4 6 2 4 61 1 1 18 8 8
�
250A
350A
vs
p
Virt
ual p
re-a
rcin
g tim
e
Prospective short-circuit current
AD
A94-5
123b
Fig.96-170
Correction factor kA for clearing I2t value
Fig.96-171
Arc voltage
0 100 200 300 400 500 600�
1
700 800
A
w
Cor
rect
ion
fact
or 0.8
0.6
0.4
0.2
AD
A94
-504
3b
Recovery voltage
0 200 400 600�
800 1000 1200
400
800
1200
1600
2000�
1400
1000
600
200
0
1800
s
w
Pea
k ar
c vo
ltage
AD
A94
-512
4b
Recovery voltage
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
97
Fig.97-172
Let-through characteristics (current limiting at 50 Hz)
Fig.97-173
2
�
1x10
2
4
6
2
1x103
1x104
1x10 5
2
4
6
2
4
6
2
x102 x103 x104 x1052 2 4 61 1 1 18 8 8
�
4 6 4 6
250A
350A
c
p
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent �
Prospective short-circuit current� �
AD
A94
-512
5b
12,5
57
68
119
57
30
7 79
12.5
10.5
10.5
AD
A94
-514
3a
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
98
Dimension DrawingsAccessories
Fig.98-174
Fuse base 3NH3 030 Fig.98-175
Fuse base 3NH3 120 Fig.98-176
Fuse base 3NH3 230
Fig.98-177
Fuse base 3NH3 330 Fig.98-178
Fuse base 3NH3 430 Fig.98-179
Fuse base 3NH4 030
M8
DA
94-5
152
(M6)
3424
A
25.5
101.
512
1.5
61.8
94.1
56.5
7.5
23.2
Dimensions in mm
150
173
31
2520
39
24
94
40M8
14
DA
94-5
046a
32.6
74.5
8.3
7.5
62.8 A
Dimensions in mm
11
80D
A94
-515
3a
(M8)
155
M1035
85 A
25.7
176.
520
1.5
30.7
35.248.8
Dimensions in mm
11
80D
A94
-515
4a
(M8)
155
M1035
90 A
25.7
201.
522
6.5
30.7
35.248.8
Dimensions in mm
11
80D
A95
-515
5a
(M8)
155
M1235
101 A
25.7
211.
524
1.5
35.2
30.7
48.8Dimensions in mm
DA
94-5
150a
(M6)
M8
24
6286
70102
A13
8.5
23.233.5
94.1
56.5
25.5
101.
512
1.5
7.5
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
99
Fig.99-180
Fuse base 3NH4 230 Fig.99-181
Fuse puller 3NX1 011
Fig.99-182
Fuse base 3NC1 038-1 Fig.99-183
Fuse base 3NC1 038-2 Fig.99-184
Fuse base 3NC1 038-3
25
M10
35
85
80
DA94-5151a
(M8)
203
A
10.6
176.
520
1.5
35.255.3
107.3163.1
110.6
Dimensions in mm
66
DA
94-5
156a
136
9326
Dimensions in mm
76
3NC
1038
-1
3120
Dimensions in mm
76
3NC
1038
-2
3140 20
Dimensions in mm
76
3NC
1038
-3
3160
2020
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
100
Fig.100-185
Fuse base 3NC1 451-1 Phase barrier for 3NC1451-1
24
3NC
1451
-1
90
88
50
103.5
50.5
A
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
101
Fig.101-186
Fuse base 3NC2258-1 Phase barrier for 3NC2258-1
3NC
2258
-1
3366
.2
A
66.5
126.5110.8
Dimensions in mm
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
102
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
103
Technical Descriptionand Terminology
Technical InformationRated voltage Vn
Rated current In, load capacity
I2t values
Time/current characteristics
Actual pre-arcing time
Taking into account the pre-loading, residual value RW
Let-through current Ic
Rated interrupting capacity
Arc voltage Ûs
Power dissipation, temperature rise
Connecting fuse links in parallel and series
DC current applications
Indicators
Accessories
Determining the Rated CurrentDetermining the rated current In for ageing-free operation with cyclic loads
Selection examples
Fuse Monitoring
Terminology
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
104
Technical Information
Fuse links are selected according to the rated voltage, rated current, clear-
ing I2t value I2tA and the cyclic load factor taking into account the other
conditions specified in Section 4 ’Technical Description and Terminology’.
Unless otherwise noted, all of the following data and information refer to
AC operation at frequencies of between 45 and 62 Hz.
4.1 Rated voltage Vn
The rated voltage of a SITOR fuse link is the RMS value of an AC voltage which is specified in the Ordering and Engineer-ing Data, and the Characteristic Values as well as on the fuse link itself.
The rated voltage of a fuse link should be selected so that it reliably clears the voltage which is driving the short-circuit current. The driving voltage may not ex-ceed a value of Vn + 10 %. It should be noted that the supply voltage Vv0 of a converter can increase by 10 %. If two branches of a converter circuit are in series in the short-circuit path, then for an adequately high short-circuit current it can be assumed that the voltage is evenly distributed. In this case it is imperative that the information and in-structions in Section 4.11.2 ’Fuse links in series’ is carefully observed.
4.1.1 Rectifier operation
For converters which only operate in the rectifier mode, the connection voltage Vv0 is the driving voltage.
4.1.2 Inverter operation
For converters which also operate in the inverter mode, inverter commutation faults can occur when a fault develops. In this case, the driving voltage VWK in the short-circuit is the sum of the sup-plying DC voltage (e.g. EMF of the DC motor) and the connection voltage on the three-phase side. In order to dimen-sion the fuse link, this sum can be replaced by an AC voltage whose RMS value corresponds to 180% of the con-nection voltage on the three-phase side (VWK = 1.8 Vv0). The fuse links must be dimensioned so that they reliably clear voltage VWK.
4.2 Rated current In, load capacity
The rated current of a SITOR fuse link is the RMS value of an AC current for a fre-quency range of between 45 and 62 Hz specified in Sections 2 and 3 ’Ordering and Engineering Data’ and ’Characteris-tics and Dimension Drawings’ as well as the current specified on the fuse link itself.
When fuse links are used with the rated current, the standard operating condi-tions are as follows:
• Natural air cooling with an ambient temperature of +45 °C
• Connection cross-sections the same as the test cross-sections (refer to Sec-tion 4.2.1), when used in l.v.h.b.c. fuse bases and switch disconnectors, refer to Section 2 'Ordering and Engi-neering Data'
• Current conduction angle of half a period 120 °el
• Continuous maximum load with the rated current
For operating conditions which deviate from these, the permissible load current In' of the SITOR fuse link is determined using the following formula
In’ = ku x kq x kλ x kl x WL x In
with
In... rated current of the fuse link 1)
ku... correction factor, ambient temper-ature (Section 4.2.2)
kq... correction factor, connection cross-section (Section 4.2.3)
kλ... correction factor, current conduc-tion angle (Section 4.2.4)
kl... correction factor, forced air cooling (Section 4.2.5)
WL...cyclic load factor (Section 4.2.6)
1) When using SITOR fuse links in l.v.h.b.c. fuse bases according to IEC/EN 60269-2-1 as well as in fused switch disconnectors and switch disconnectors with fuses, the information in Section 2 'Ordering and Engineering Data' must also be observed.
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
105
4.2.1 Test cross-sections
Rated current In
A
Test cross-section(series 3NC10, 3NC11, 3NC14, 3NC15, 3NC22, 3NE1..., 3NE8 0.., 3NE41)
Cu mm2
Test cross-section(all of the remaining series)
Cu mm2
10 1.0 –
16 1.5 –
20 2.5 45
25 4 45
35 6 45
40 10 45
50 10 45
63 16 45
80 25 45
100 35 60
125 50 80
160 70 100
200 95 125
224 – 150
250 120 185
315 2 x 70 240
350 2 x 95 260
400 2 x 95 320
450 2 x 120 320
500 2 x 120 400
560 2 x 150 400
630 2 x 185 480
710 2 x (40 x 5) 560
800 2 x (50 x 5) 560
900 2 x (80 x 4) 720
1000 – 720
1250 – 960
Table105-46
Test cross-sections of SITOR fuse links
4.2.2 Correction factor, ambient temperature ku
The influence of the ambient tempera-ture on the permissible load placed on the SITOR fuse link is taken into account using correction factor ku corresponding to the following diagram.
4.2.3 Correction factor, connection cross-section kq
The rated current of SITOR fuse links is valid for use with connection cross-sec-tions which correspond to the particular test cross-section (refer to Section 4.2.1).
For reduced connection cross-sections, correction factor kq, as shown in the following diagram, should be applied.
Fig.105-187
Correction factor, ambient temperature
Fig.105-188
Correction factor, connection cross-section
–40 –20 0 +20 +40 +60 +80� �
u
Ambient temperature
Cor
rect
ion
fact
or
0.8
0.9
1.0
1.1
1.2
AD
A94
-505
4
�
q
100 80 60 50 40 30 20 15 10
�
�
Connection cross-section(as a % of the test cross-section)
Cor
rect
ion
fact
or
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65 AD
A94
-505
7
a) Cross-section reduction of one connectionb) Cross-section reduction of both connections
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
106
4.2.4 Correction factor, current conduction angle kλ
The rated current of SITOR fuse links is based on a sinusoidal AC current (45 Hz to 62 Hz). In converter operation, the fuses in the branch have to conduct an intermittent current whereby the cur-rent conduction angle in most cases is either 180 °el or 120 °el. When the load current has this waveform, the fuse link can still conduct the full rated current. The current must be reduced corre-sponding to the following diagram for lower current conduction angles.
4.2.5 Correction factor for increased air cooling kl
With increased air cooling, the load capacity of the fuse links increases with the air velocity; air velocities > 5 m/s significantly increases the load capacity.
Fig.106-189
Correction factor, valve conducting period
Fig.106-190
Correction factor for increased air cooling
30 45 60 90 120 180 240
�
360
Valve conducting period
Cor
rect
ion
fact
or
0.5
0.6
0.7
0.8
0.9
1.0
1.1
AD
A94
-505
5b
0 2 4
� � �
l
6
Air velocity
Cor
rect
ion
fact
or
1.0
1.1
1.2
1.4
1.3
AD
A94
-505
6b
4.2.6 Cyclic load factor WL
The cyclic load factor WL is a reduction factor which can be used to determine the ageing-free load capacity of a fuse link for any load duty cycle. SITOR fuse links have different cyclic load factors as a result of the mechanical design. The particular cyclic load factor WL for >10000 load cycles (1 hour "on", 1 hour
"off") during the expected operating time of the fuse links is specified in Sec-tion 3 'Characteristics and Dimension Drawings'. For a lower number of load cycles during the expected operating time of the fuse links, then according to the following diagram, a fuse link with a lower cyclic factor WL is adequate.
For a uniform load (no load duty cycles and no interrupt operations), then a cy-clic load factor WL = 1 can be assumed. For load duty cycles as well as interrupt operations, which last longer than 5 min., and which occur more frequently than 1 x per week, then the cyclic load factor WL specified for the individual fuse links in Section 3 'Characteristics and Dimension Drawings' should be selected.
Fig.106-191
Cyclic load factor WL characteristic for load cycles
101 2 5 102 2 5 103 2 5 104 2 5 105
� ����/
LAn
Permissible number of load cycles
0.6
0.7
0.8
1.1
0.9
1.0 1.0
0.95
0.9
0.85
0.8
AD
A94
-505
8b
ILa...Load current of the linkIn... Rated current of the fuse link
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
107
4.2.7 Fuse currents when used in a converter
The RMS value of the fuse current for the most usual converter circuit config-urations can be calculated from the
(smoothed) DC current Id and from the phase current IL according to the following table.
Converter circuit configuration RMS value of the phase current(phase fuse)
RMS value of the branch current(branch fuse)
Single-pulse center-tap circuit2-pulse center-tap circuit3-pulse center-tap circuit6-pulse center-tap circuitDouble 3-pulse center-tap circuit(parallel)
(M1)(M2)(M3)(M6)(M3.2)
1.57 Id0.71 Id0.58 Id0.41 Id0.29 Id
–––––
2-pulse bridge circuit6-pulse bridge circuit
(B2)(B6)
1.0 Id0.82 Id
0.71 Id0.58 Id
Single-phase bi-directional circuit (W1) 1.0 IL 0.71 IL
Table107-47
Fuse currents when used in a converter
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
108
4.3 I2t values
When a short-circuit develops, the current through the fuse link increases, during the pre-arcing time ts up to the let-through current Ic (peak melting current).
During the arc time tL the arc forms and the short-circuit current is cleared (refer to the following diagram).
The integral of the square of the current over the complete clearing time (ts+tL) – also known as the clearing I2t value, defines the heat which the semiconduc-tor component is subject to, which is to be protected, during the interrupt operation.
In order to provide adequate protection, the clearing I 2t value of the fuse link must be less than the I 2t value of the semiconductor component. The clear-ing I2t value of the fuse link practically decreases the same as the I 2t value of a semiconductor component with in-creasing temperature, i.e. increasing pre-loading. This means that it is suffi-cient to compare the I 2t values in the non-loaded (cold) condition.
The clearing I2t value (I2tA) is the sum of the pre-arcing I2t value (I2ts) and the arcing I2t value (I2tL).
(semiconductor, tvj = 25°C, tp = 10 ms) > (fuse link)
4.3.1 Pre-arcing I2t value I2ts
The pre-arcing I2t value can be calculat-ed for any time from the value pairs of the time/current characteristic of the fuse link.
For decreasing pre-arcing times, the pre-arcing I2t value goes to a lower limit value where, during melting, almost no heat is dissipated from the notches of the fuse element to the environment. The pre-arcing I2t values, specified in Sections 2 and 3 of the ’Ordering and Engineering Data’ und ’Characteristics and Dimension Drawing’ correspond to the pre-arcing time of tvs = 1 ms.
4.3.2 Arcing I2t value I2tL
While the pre-arcing I2t value is a char-acteristic of the fuse link, the arcing I2t value depends on the circuit data, and more precisely
• on the recovery voltage Vw
• on the power factor cos ϕ of the short-circuit loop
• on the prospective current Ip (current at the location where the fuse link is mounted if this is bypassed)
The maximum of the arcing I2t value is reached, depending on the fuse type, at a current of between 10 In up to 30 In.
4.3.3 Clearing I2t value I2tA, correction factor kA
The clearing I2t values of the fuse links are specified in Section 3 ’Characteris-tics and Dimension Drawings’ for rated voltage Vn. The correction factor kA should be taken into account when determining the clearing-I2t value for a recovery voltage Vw.
I2tA (for Vw) = I2tA (for Vn) x kA
The "Correction factor kA" characteristic (refer to the following diagram) is spec-ified for the individual fuse series in Section 3 ’Characteristics and Dimen-sion Drawing’. The clearing I2t values, determined in this fashion, are valid for prospective currents Ip ≥ 10 x ln and cos ϕ = 0.35.
4.3.4 Taking into account the recovery voltage Vw
The recovery voltage Vw is obtained from the voltage which drives the short-circuit current. The driving volt-age is, in most fault situations, the same as the supply voltage Vv0. For inverter commutation faults, it is 180% of the supply voltage Vv0 (refer to Section 4.1 ’Rated voltage’). If two branches of a converter circuit are located in the short-circuit loop, and there are there-fore two fuse links in series, when the short-circuit current is sufficiently high (refer to Section 4.11.2), then it can be assumed that the voltage will be evenly distributed. This means Vw = 0.5 Vv0 or, for inverter commutation faults, Vw = 0.9 Vv0.
Fig.108-192
Current characteristic when a fuse ruptures
c
s
A
L
DA
94-5
059
i
I2 td∫( )
I2 td∫( )I2tA∫( )
Fig.108-193
Correction factor kA for clearing I2t value
100 200 300 400 500 600�
1
700
A
wRecovery voltage
Cor
rect
ion
fact
or
0.2
0.4
0.6
0.8
AD
A94
-506
0b
Example: Series 3NE8 0...
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
109
4.3.5 Influence of the power factor cos ϕ
The data provided in Section 3 ’Charac-teristics and Dimension Drawings’ for the clearing I2t values (I2tA) refers to a power factor of cos ϕ = 0.35 (exception: For SITOR fuse links 3NC5 8.., 3NE6 4.., 3NE9 4.. , then cos ϕ = 0.2 applies).
The following diagram shows the relationship between the clearing I 2t values and the power factor cos ϕ at 1.0 Vn and at 0.5 Vn.
4.4 Time/current characteristics
In the following diagram the time/cur-rent characteristics shown indicate the time up to melting for the unloaded fuse link from the cold state (max. +45 °C).
If the time/current characteristic is shown as dotted line in the long time range (tvs > 30 s) (fuse links, utilization Category aR), then this represents the limit of the permissible overload from the cold condition. If the dotted section of the characteristic is exceeded, there is a danger that the ceramic body of the fuse link could be damaged. The fuse link can only be used as short-circuit protection. In this case an additional protective device (overload relay, circuit-breaker) is required to provide overload protection. For closed-loop controlled converter units the closed-loop current limiting control is sufficient.
If the time/current characteristic is a solid line over the complete time range (fuse links, utilization Category gR or gS), then the fuse link can interrupt the current over the complete time range. This means that it can be used for overload and short-circuit protection.
4.5 Actual pre-arcing time
The virtual pre-arcing time tvs is speci-fied in the time/current characteristic as a function of the prospective current. This is a value which is valid for a squarewave current (di/dt) = ∞).
For pre-arcing times tvs < 20 ms, the vir-tual pre-arcing time tvs deviates from the actual pre-arcing time ts. The actual pre-arcing time can (depending on the current rate-of-rise) be several milli-seconds longer.
In the range of several milliseconds, over which time the increase of the short-circuit current can be considered to be linear, for a sinusoidal current increase and at 50 Hz, the actual pre-arcing time is given by:
Fig.109-194
Clearing I2t value I2tA for SITOR fuse links as a function of power factor cos ϕ
060
100
120�
80a
b
0.2 0.4 0.6 0.8
Power factor cosCle
anin
g- �
val
ue���
a
t cos
(as
a %
of
at
cos
=
0.3
5 or
0.2
)
22
A2
A
AD
A94
-506
1b
for 1.0 Unfor 0.5 Un
a) for SITOR fuse links 3NC5 8..., 3NE6 4..., 3NE9 4.. (reference to cos ϕ = 0,2)
b) for all other SITOR fuse links (reference to cos ϕ = 0,35)
Fig.109-195
Time/current characteristics of fuse links
2 4 6
�
1x10
vs
-3
1x10-2
1x10-1
1x100
1x101
1x102
1x103
x10 1 x10 2 x10 3 x10 42 4 6 2 4 61 1 1 18 8 8
p
� 1x104
35A 160A
Prospective short-circuit current
Virt
ual p
re-a
rcin
g tim
e
AD
A94
-507
8b
35 A: Utilization Category gR160 A: Utilization Category aR
ts
3xI2
ts
Ic2
-----------------=
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
110
4.6 Taking into account the pre-loading condition, residual value factor RW
A pre-loading condition of the fuse link reduces the permissible overload duration and the pre-arcing time.
The residual value factor RW can be used to determine the time for which a fuse link can be operated, ageing-free at any overload current ILa during a peri-odic or non-periodic load duty cycle above the previously determined per-missible load current In’.
The residual value factor RW depends on the pre-loading condition V (Irms RMS fuse current during the load duty cycle to the permissible load current In’)
as well as the frequency of the overload conditions (refer to the following dia-gram, characteristics a and b).
Permissible overload duration = residual value factor RW x pre-arcing time tvs (time/current characteristic)
The reduction of the pre-arcing time of a fuse link for a specific pre-load condi-tion can be taken from characteristic c.
Pre-arcing time = residual value factor RW x pre-arcing time tvs (time/current characteristic)
VIrms
In′----------=
Fig.110-196
Permissible overload and pre-arcing time for a pre-loading condition
0
1
0 1
c
b
a
DA
94-5
062b
0.9
Pre-load factor0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Res
t val
ue fa
ctor
AD
A94
-506
2b
a) Frequent impulse/load duty cycle currents (> 1/week)b) Seldom impulse/load duty cycle currents (< 1/week)c) Pre-arcing time for pre-loading
4.7 Let-through current Ic
The let-through current Ic can be deter-mined from the let-through characteris-tics (current limiting at 50 Hz) specified for the particular fuse link in Section 3 ’Characteristics and Dimension Draw-ings’. The let-through current is depen-dent on the prospective current and the DC current element when the short-cir-cuit actually occurs (instant of switch-on).
The let-through current Ic of a fuse link as a function of the prospective short-circuit current Ip is shown in the following diagram using as an example a SITOR fuse link 3NE4 333-0B.
Fig.110-197
Let-through current Ic of a fuse link
2
�
c
x102 x103 x104 x1052 2 4 61 1 1 1
�
4 6 4 6
1x105
1x104
1x103
1x102
450A
DA
94-5
079b
Prospective short-circuit current
Unlimited peak values:DC component 50%DC component 0%
Let-
thro
ugh
curr
ent
A
p
Example: SITOR fuse link 3NE4 333-0B
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
111
4.8 Rated interrupting capacity
The rated interrupting capacity of all SITOR fuse links is at least 50 kA if higher values are not specified in Section 3 ’Characteristics and Dimen-sion Drawings’. The data is valid for a test voltage of 1.1 x Vn, 45 to 62 Hz and 0.1 ≤ cos ϕ ≤ 0.2. For application voltag-es which lie below the rated voltage as well as for rated currents of the fuse links which lie below the maximum rated current of a fuse series, the inter-rupting capacity lies significantly above the rated interrupting capacity.
4.9 Arc voltage Vs [Ûs]
When extinguishing, an arc voltage Vs [Ûs] occurs at the connections of the fuse link. This arc voltage can signifi-cantly exceed the connection voltage. The magnitude of the arc voltage de-pends on the design of the fuse link and the magnitude of the recovery voltage. It is shown in the form of a characteristic as a function of the recovery voltage Vw (refer to the following diagram).
The arc voltage occurs at the semicon-ductor components, which are not located in the short-circuit loop, as blocking voltage. In order to avoid a voltage-related hazard, the arc voltage may not exceed the peak blocking volt-age of the semiconductor component.
4.10 Power dissipation, temperature rise
When the rated current is reached, the fuse elements of SITOR fuse links have a significantly higher temperature than the fuse elements of cable protection fuse links.
The power dissipation, specified in Section 3 ’Characteristics and Dimen-sion Drawings’ is the upper spread value if the fuse link is conducting the rated current.
The power dissipation decreases at partial load corresponding to the follow-ing diagram.
The temperature rise, specified in Section 3 ’Characteristics and Dimen-sion Drawings’, is valid for the specified reference point and was determined when testing the fuse link (test setup in accordance with DIN VDE 0636, Part 23 and IEC 269-4).
4.11 Connecting fuse links in parallel and series
4.11.1 Parallel circuit
If several semiconductor components and therefore fuse links are connected in parallel in a branch when an internal short-circuit develops, then only the fuse link connected in series with the defective semiconductor component ruptures. This fuse link must extinguish the full connection voltage.
If it is necessary increase the current, two or several fuse links connected in parallel can be assigned to a semicon-ductor component without having to re-duce the current. The resulting clearing-I2t value then increases to the square of the number of fuse links connected in parallel. Only fuse links of the same type should be used in order to avoid that the current is unevenly distributed.
Fig.111-198
Arc voltage
0 200 400 600
�
800 1000 1200
1000
1400
2000
s�
w
200
400
600
800
1200
1600
1800
Recovery voltage
Pea
k ar
c vo
ltage
AD
A94
-506
3b
Example: SITOR fuse link 3NE4 333-0B
Fig.111-199
Power dissipation at partial load
100
80
60
40
20
0
�
0 20 40 60 80 100�
n
Load current(as a % of rated current )
Pow
er d
issi
patio
n at
par
tial l
oad
(as
a %
of t
he p
ower
diss
ipat
ed a
t rat
ed c
urre
nt)
AD
A94
-506
4b
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
112
4.11.2 Fuse links in series
There are two types of series circuits:
• Series circuit in the converter branch
• Two fused converter branches con-duct the short-circuit current in series
In both of these cases it can only be assumed that the voltage will be evenly distributed if the pre-arcing time of the SITOR fuse link does not exceed the values specified in the following Table.
The cooling conditions of the fuse links connected in series should be approxi-mately the same. If faults are to be ex-pected where the specified pre-arcing times are exceeded due to the slower in-crease in the current-rate-of-rise, then it can no longer be assumed that the volt-age will be evenly distributed. In this case, the fuse links should be dimen-sioned as far as the voltage is concerned so that one fuse link alone can extin-guish the full connection voltage.
As far as possible a series circuit of fuse links in the branch of a converter circuit should be avoided. Instead, a single fuse link should be used with the corre-spondingly higher rated voltage.
SITORfuse links
Order No.
Maximum pre-arcing time for an even voltage distribution
ms
3NC1 0..3NC1 1..3NC1 4..3NC1 5..3NC2 2..
1010101010
3NC2 4..3NC5 8..3NC7 3..3NC8 4..
40101010
3NE1 0..3NE1 2..3NE1 3..3NE1 4..3NE1 8..
1010102010
3NE3 2..3NE3 3..3NE3 4..3NE3 5..3NE3 6..
1010202020
3NE4 1..3NE4 3..
1010
3NE5 4..3NE5 6..
2020
3NE6 4.. 10
3NE7 4..3NE7 6..
2020
3NE8 0..3NE8 7..
1010
3NE9 4..3NE9 6..
1020
Table112-48
Maximum pre-arcing times for even voltage distribution
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
113
4.12 DC current applications
When fuse links are used in DC circuits, in some cases, other data apply than those specified for AC current in Section 3 ’Characteristics and Dimen-sion Drawings’.
4.12.1 Permissible DC voltage
The permissible DC voltage Vperm of the fuse link depends on the rated voltage Vn, the time constant τ = L/R in the DC link and the prospective current Ip. The permissible DC voltage is referred to the rated voltage Vn and is specified as a function of time constant τ and the pro-spective current is a parameter (refer to the following diagram).
Fig.113-200
Permissible DC voltage of a fuse link
0 10 20 30 40 50 60 70 80� �
p n
> 20 �
p n = 10
p n = 5
nperm
Time constant � � � =
1.00
0.90
0.80
0.70
0.60
0.50
0.40 AD
A94
-506
5b
perm
. DC
vol
tage
rate
d vo
ltage
0 10 20 30 40 50 60 70 80� �
p n
> 20 �
p n = 10
p n = 5
Time constant
0.90
0.80
0.70
0.60
0.50
0.40
0.30
perm
. DC
vol
tage
rate
d vo
ltage
perm
n
AD
A94
-506
6b
With the exception of series 3NE1 0.., 3NE1 8..
for the series 3NE1 0.., 3NE1 8..
4.12.2 Clearing I2t value I2tA
The clearing I2t value I2tA depends on the voltage, the time constant τ = L/R and the prospective current Ip. It is cal-culated using the I2tA value at the rated voltage Vn, specified in Section 3 ’Char-acteristics and Dimension Drawings’ for the particular fuse link and correction factor kA. However, instead of the recov-ery voltage Vw, that DC voltage is insert-ed against which the fuse link should switch.
The clearing I2t value thus determined applies under the following prerequi-sites:
• Time constant L/R ≤ 25 ms for Ip ≥ 20 In• Time constant L/R ≤ 10 ms for Ip = 10 In
The clearing I2t values increase by 20 %
• For Ip ≥ 20 In and a time constant L/R = 60 ms
• For Ip = 10 In and a time constant L/R = 35 ms
4.12.3 Arc voltage Ûs
The arc voltage Ûs is determined from the characteristic for the particular fuse link specified in Section 3 ’Characteris-tics and Dimension Drawings’. How-ever, instead of the recovery voltage Vw, that DC voltage is inserted against which the fuse link should switch.
The arc voltage thus determined applies under the following prerequisites:
• Time constant L/R ≤ 20 ms for Ip ≥ 20 In• Time constant L/R ≤ 35 ms for Ip = 10 In
The clearing I2t values increase by 20 %
• For Ip ≥ 20 In and a time constant L/R = 45 ms
• For Ip = 10 In and a time constant L/R = 60 msKan
chan
Ene
terpr
ises
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
114
4.13 Indicators
An indicator is used to show when the fuse link has ruptured. SITOR fuse links have an indicator whose response voltage lies between 20 V (Vn ≤ 1000 V) and 40 V (Vn > 1000 V).
4.14 Accessories
4.14.1 Fuse bases, fuse pullers
Some of the SITOR fuse links can be used in the appropriate fuse bases. The matching fuse bases (single-phase and three-phase) as well as the associat-ed fuse pullers are listed in the Tables in Section 2.3 'Accessories' and Section 3 ’Characteristics and Dimension Draw-ings’.
NoteEven if the rated voltage and/or current of the fuse bases are lower than that of the associated fuse link, the values of the fuse link apply.
4.14.2 Fused switch disconnec-tors, switch disconnectors with fuses
Certain series of SITOR fuse links are suitable for use in fused switch discon-nectors 3NP4 and 3NP5 (refer to Catalog NS K) and in switch disconnec-tors with fuses 3KL and 3KM (refer to Catalog NS K).
The following points must be carefully observed when fuse links are used in switch disconnectors:
• The power dissipation of SITOR fuse links is higher when compared to l.v.h.b.c. cable protection fuses. This means that the permissible load current of the fuse links must in some cases be reduced (also refer to Section 2.3 ’Accessories’.
• Fuse links with rated currents In > 63 A may then not be used as overload protection, if they correspond to duty Class gR.
NoteAll 3NE1... fuse links with rated currents In from 16 A to 850 A and utilization Categories gR and gS can, on the other hand, be used to provide overload pro-tection.
• The rated voltage and rated insulation voltage of the switch disconnectors must correspond, as a minimum, to the voltage being used.
• When using 3NE3 2.., 3NE3 3.., 3NE4 3.., 3NC2 4.. and 3NC8 4.. fuse links, the switching capacity of fused switch disconnectors may not be fully utilized due to the slotted knife contacts. It is permissible to occasionally switch currents up to the rated current of the fuse links.
• 3NE4 1.. fuse links when used in fused switch disconnectors may only be occasionally actuated and only when in a no-current condition as the fuse contact blades are subject to signifi-cant mechanical stresses.
The individual fuse links are assigned to the various switch disconnectors in Section 2.3 'Accessories'. The permissi-ble load capacity of the fuse link and the required connection cross-section are also specified here.
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
115
Determining the Rated Current
4.15 Determining the rated current In for ageing-free operation with cyclic loads
Frequently, converters are not operated with a continuous load, but with cyclic loads which can also briefly exceed the rated converter current.
The selection techniques for ageing-free operation of SITOR fuse links will now be described for four typical load types.1)
• Continuous load
• Unknown cyclic load, however with a known maximum current
• Cyclic load with known load duty cycle
• Occasional impulse load from a pre-loaded condition with unknown impulse sequence
In this case the diagrams for the correc-tion factors ku, kq, kλ , kl in Section 4.2 ’Rated current In, load capacity’ as well as the residual value factor RW in Section 4.6 ’Taking into account the pre-loaded condition, residual value fac-tor RW’ of the ’Technical data’ should be observed. The cyclic load factor WL is specified for every fuse link in Section 3 ’Characteristics and dimension drawings’.
The required rated current In of the fuse link is determined in two steps:
1. The rated current In is determined us-ing the RMS value Irms of the load cur-rent
Permissible load current In’ of the selected fuse link.
In’ = ku x kq x kλ x kl x WL x In
2. The permissible overload duration of the current blocks exceeding the permissible fuse load current In’ is checked.
Pre-arcing time tvs (time/current characteristic) x residual value factor RW ≥ overload duration tk
In this case, the pre-loading factor
and the characteristics 'Permissible overload and pre-arcing time for a pre-loaded condition' (Fig. 110-196, characteristic a) and "Time/current characteristic" for the selected fuse link are required.
If the determined overload duration is less than the associated, specified over-load duration, then a fuse link with a higher rated current In (taking into account the rated voltage Vn and the permissible interrupting I 2t value) should be selected and the check repeated.
4.15.1 Continuous load
1) Please contact us for cyclic loads which cannot be classified in one of the four specified typical load types.
In Irms1
ku kq kλ kl WL××××------------------------------------------------------------------×>
Fig.115-201
Continuous load
VIrms
In′----------=
La
0
LaLo
ad c
urre
nt
AD
A94
-506
7a
Rated current In of the fuse link
ILa... load current of the fuse link(RMS value)
Less than 1 interrupt oper./ week: WL = 1More than 1 interrupt operation per week:WL = refer to characteristic values
In ILa1
ku kq× kλ× kl WL××----------------------------------------------------------×≥
4.15.2 Unknown cyclic load – however with a known maximum current Imax
4.15.3 Cyclic load with known load duty cycle
Fig.115-202
Unknown cyclic load
Fig.115-203
AC load with known load duty cycle
max
0
LaLo
ad c
urre
nt
AD
A94
-506
8a
Rated current In of the fuse link
Imax... Max. load current of the fuse link (RMS value)
In Imax1
ku kq× kλ× kl WL××----------------------------------------------------------×≥
La1
La3
La2
'n
1 2 3 4
La
RMS
Load
cur
rent
AD
A94
-506
9a
ILK... Max. load current of the fuse link (RMS value)
Irms
I2
Laktk
× k 1=
k n=
∑SD
----------------------------------------------=
IrmsI2
La1t1 I2
La2t2 I2
La3t3+ +
SD------------------------------------------------------------------------=
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
116
4.15.4 Occasional impulse load from a pre-loaded condition with unknown impulse sequence
The required rated current In of the fuse link is determined in two steps:
1. The rated current In is determined us-ing the pre-loaded current Ipre.
Permissible load current In’ of the selected fuse link.
In’ = ku x kq x kλ x kl x WL x In
2. The permissible overload duration of the impulse current Iimpulse
pre-arcing time tvs (time/current characteristic) x residual value factor RW ≥ impulse time timpulse is checked
In this case the pre-loading factor
and the characteristics 'Permissible overload and pre-arcing time for a pre-loaded condition' (Fig. 196, characteristic a) and ’Time/current characteristic’ for the selected fuse link are required.
If the determined overload duration is less than the required overload duration timpulse, then a fuse link with a higher rated current In (taking into account the rated voltage Vn and the permissible clearing I2t value) should be selected and the check repeated.
4.16 Selection examples
For a converter assembly with a circuit configuration (B6) A (B6) C, whose rated DC current Idn = 850 A, fuse links should be selected which are then used as branch fuses. The selected fuse is shown for various operating modes of the converter assembly.
Converter assembly data
• Line supply voltage VN = 3-ph. 400 V AC 50 Hz
• Recovery voltage VW = 360 V = VN x 0.9 (for inverter commutation faults)
• Thyristor T 508N (eupec company), I2t value ∫ i2 dt = 320 x 10 3A2s (10 ms, cold)
• Fuse links, natural air cooling, ambient temperature ϑu = +35 °C
• Connection cross-section for the fuse links, copper: 160 mm2
• Conversion factor DC current Id/fuse load current ILa: ILa = Id x 0.58
For the following examples, for loads, which exceed the rated DC current of the converter assembly, it is assumed that the converter assembly is dimen-sioned for these load conditions.
4.16.1 Continuous, interruption-free load
The following correction factors should be applied:
ku = 1.02 (ϑu = +35 °C)
kq = 0.91 (connection cross-section at both ends, 40 % of the test cross-section)
kλ = 1.0 (valve conducting period λ = 120°)
kl = 1.0 (no forced air cooling)
Required rated current In of the SITOR fuse link:
Fig.116-204
Occasional impulse load
In Ipre1
ku kq kλ kl WL××××----------------------------------------------------------×>
VIrms
In′----------=
'n
0
La
pre
interval
impulse
impulse
Load
cur
rent�
AD
A94
-507
0a
Condition:tinterval ≥ 3 x timpulse tinterval ≥ 5 min
DA
94-5
071
La493 A
DC current Id = Idn = 850 AILa = Id x 0.58 = 493 ASelected:SITOR fuse link 3NE3 335(560 A/1000 V), WL = 1Clearing I 2t value
I 2tA = 360 x 103 x 0.53 = 191 x 103 A2sTest cross-section acc. to Table 10-1: 400 mm2
In ILa1
ku kq× kλ× kl WL××-----------------------------------------------------------× 493 A=≥
11.02 0.91× 1.0× 1.0× 1.0×-------------------------------------------------------------------------------- 531A=
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
117
4.16.2 Unknown cyclic load, however with known maxi-mum current
The following correction factors should be applied:
ku = 1.02 (ϑu = +35 °C)
kq = 0.91 (connection cross-section at both ends, 40 % of the test cross-section))
kλ = 1.0 (valve conducting period λ = 120°)
kl = 1.0 (no forced air cooling)
Required rated current In of the SITOR fuse link:
max
DA
94-5
072
La
= 435 A
Max. DC current Idmax = 750 AMax. fuse current Imax = Idmax x 0.58 = 435 ASelected:SITOR fuse link 3NE3 334-0B(560 A/1000 V), WL = 1Clearing I 2t value
I 2tA = 260 x 103 x 0.53 = 138 x 103 A2sTest cross-section acc. to Table 10-1: 400 mm2
In Imax1
ku kq× kλ× kl WL××-----------------------------------------------------------× 435 A=≥
11.02 0.91× 1.0× 1.0× 1.0×-------------------------------------------------------------------------------- 469 A=
4.16.3 Cyclic loadwith known load duty
The following correction factors should be applied:
ku = 1.02 (ϑu = +35 °C)
kq = 0.94 (connection cross-section at both ends, 50 % of the test cross-section)
kλ = 1.0 (valve conducting period λ = 120°)
kl = 1.0 (no forced air cooling)
1. Required rated current In of the SITOR fuse link:
Permissible load current In’ of the selected fuse link.
In’ = ku x kq x kλ x kl x WL x In = 1.02 x 0.94 x 1.0 x 1.0 x 1.0 x 450 = 431 A
2. The permissible overload duration of the current blocks which exceed the permis-sible fuse load current In' is checked
Pre-load factor:
Residual value factor RW:for V = 0.74 from characteristic a (Fig. 196, frequent impulse/load duty cycle currents) RW = 0.2
Current block ILa1: Pre-arcing time tvs: 230 s (from the time/current charac-teristic for 3NE3 333) tvs x RW = 230 s x 0.2 = 46 s > t1
Current block ILa3: Pre-arcing time tvs: 1200 s (from the time/current charac-teristic for 3NE3 333) tvs x RW = 1200 s x 0.2 = 240 s > t3
La1
n
1 2 4
= 330 s
La
= 696 A La3= 580 A
= 317 A
3
La2= 290 A
'
RMS
AD
A94
-507
3a
RMS value of the load current
Selected:SITOR fuse link 3NE3 333(450 A/1000 V), WL = 1Clearing I2t value I2tA = 175 x 103 x 0.53 = 93 x 103 A2sTest cross-section acc. to Table 10-1: 320 mm2
Irms696
220 290
2+× 240 580
210×+×
330------------------------------------------------------------------------------------------------------ 317A= =
DC current: Id1 =1200 A t1 = 20 sId2 = 500 A t2 = 240 sId3 =1000 A t3 = 10 sId4 = 0 A t4 = 60 s
Fuse current:ILa1 =1200 x 0.58 = 696 AILa2 = 500 x 0.58 = 290 AILa3 =1000 x 0.58 = 580 A
In Irms1
ku kq× kλ× kl WL××-----------------------------------------------------------× 317 A=≥
11.02 0.94× 1.0× 1.0× 1.0×-------------------------------------------------------------------------------- 331 A=
VIrms
In′---------- 317
431----------- 0.74= = =
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
118
4.16.4 Occasional impulse load from a pre-loaded condition with known impulse sequence
The following correction factors should be applied::
ku = 1.02 (ϑu = +35 °C)
kq = 0.91 (connection cross-section at both ends, 40 % of the test cross-section)
kλ = 1.0 (valve conducting period λ = 120°)
kl = 1.0 (no forced air cooling)
1. Required rated current In of the SITOR fuse link:
Permissible load current In’ of the selected fuse link:
In’ = ku x kq x kλ x kl x WL x In = 1.02 x 0.91 x 1.0 x 1.0 x 1.0 x 560 = 520 A
2. The permissible overload duration of the current blocks, which exceed the permissible fuse load current Iimpulse is checked
Pre-loading factor :
Residual value factor RW:for V = 0.78 from characteristic a (Fig. 196, frequent impulse/load duty cycle currents) RW = 0.18
Impulse current Iimpulse: Pre-arcing time tvs: 110 s (from the time/current characteristic for 3NE3 333) tvs x RW = 110 s x 0.18 = 19.8 s > timpulse
La
= 406 A
= 1015 A
= 8 s
pre
impulse
impulse
AD
A94
-507
4a
The conditionstinterval ≥ 3 timpulse and tinterval ≥ 5 min are fulfilled.
Selected:SITOR fuse link 3NE3 333(560 A/1000 V), WL = 1Clearing I2t value I2tA = 360 x 103 x 0.53 = 191 x 103 A2sTest cross-section acc. to Table 10-1: 400 mm2
DC current: Idpre = 700 AIdimpulse = 500 A timpulse = 8 s
Fuse current:Ipre = Idpre x 0.58 = 406 AIimpulse = Idimpulse x 0.58 = 1015 A
In Ipre1
ku kq× kλ× kl WL××-----------------------------------------------------------× 406 A=≥
11.02 0.91× 1.0× 1.0× 1.0×-------------------------------------------------------------------------------- 437 A=
VIpre
In′--------- 406
520----------- 0.78= = =
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
119
Fuse Monitoring
The following fuse monitoring devices represent a low-ohmic bypass
(circuit-breaker). These monitoring devices are intended for
semiconductor protection fuse links which are only used to protect
semiconductor components as either phase or branch fuses and are not
intended to be used to bring the converter into a no-voltage condition.
3NP4 and 3NP5 fuse switch disconnec-tors are available with integrated 3RV.. circuit-breakers (up to 690 V) or with electronic fuse monitoring (up to 500 V).
For more detailed information, refer to Catalog NS K Section 12.
According to DIN VDE 0100, monitoring devices for fuse links which are also in-tended to simultaneously disconnect the voltage, may only be used if the monitoring circuit is positively discon-nected together with the main circuit. When monitoring cable protection fuse links, fused switch disconnectors with mounted circuit-breaker are used as listed in Catalog NS K.
4.17 Circuit-breakers
4.17.1 Applications
3RV1611 circuit-breakers (refer to Cata-log NS K) are used to monitor phase fuses for connection voltages up to 690 V.
A circuit-breaker is not suitable to moni-tor fuses of converters where inverter commutation faults can occur or for those converters where, when a fault occurs, DC voltages >250 V/pole can be fed back into the line supply.
In the DC circuit of a converter, fuse links cannot be monitored using 3RV1611 circuit-breakers.
4.17.2 Mode of operation
Each of the phase fuses to be moni-tored is connected in parallel to a cir-cuit-breaker path (refer to the following diagram). When the fuse link ruptures, the circuit-breaker trips and signals that the fuse has ruptured.
Fig.119-205
Monitoring phase fuses using 3RV1611 circuit-breaker
DA
94-5
077b
L1 L2 L3
1 211353
2 4 6 14 22
AConverter
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
120
Terminology
This glossary explains the most important terms when using fuse links to
protect semiconductor components.
Additional definitions are included in DIN VDE 0636, Part 1 and Part 10.
Rated interrupting capacity
The rated interrupting capacity specifies the highest prospective short-circuit current Ip which a fuse link can interrupt at 1.1x rated voltage and under speci-fied conditions.
Rated frequency
The rated frequency is the frequency for which the fuse link is designed regard-ing the power dissipation, current, voltage, characteristics and interrupting capacity.
Rated voltage Vn
The rated voltage is the voltage stamped on the fuse and which is de-fined according to the test conditions and the operating voltage limits.
For SITOR fuse links, the rated voltage is always an RMS AC voltage.
Rated current In
The rated current of a fuse link is the current which is stamped on the fuse link and which the fuse can conduct under the specified conditions (refer to Section ’Technical information’) without having a negative impact on the func-tion of the fuse.
Utilization Category
The utilization Category is a designation of the Function Class of a fuse link in conjunction with the element to be pro-tected.
• Utilization Category gS: Full range semiconductor protection fuse for use in fused switchgear and switching devices
• Utilization Category gR: Full range semiconductor protection
• Utilization Category aR: Partial range semiconductor protec-tion
Let-through current Ic
The let-through current Ic is the highest instantaneous current value which is reached when a fuse ruptures.
Let-through current characteristic
The let-through current characteristic specifies the let-through current at 50 Hz as a function of the prospective current.
Function Class
The function class designates the capability of a fuse link to conduct spe-cific currents without damage and to interrupt overcurrents within a specific range (range of the interrupting capacity).
Function Class a
Partial range fuses:Fuse links which conduct currents up to at least their rated current and can inter-rupt currents above a certain multiple of their rated current up to the rated inter-rupting capacity.
Function Class g
Full range fuses:Fuse links which can continually con-duct currents up to at least their rated current and can interrupt currents from the smallest pre-arcing current up to the rated interrupting capacity.Kan
chan
Ene
terpr
ises
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
121
I2t value
The I2t value (Joule integral) is the integral of the square of the current over a specified time interval:
The I2t values for pre-arcing (I2ts) and for clearing (I2tA _ sum of the pre-arcing and arcing I2t value).
Power dissipation
The power dissipation is the power which is dissipated in a fuse-link which is conducting its rated current under specified conditions.
Arc voltage Ûs
The arc voltage is the highest voltage which occurs at the fuse link connec-tions during the arcing time.
Residual value factor RW
The residual value factor is a reduction factor which is used to determine the permissible load duration of the fuse link with currents which exceed the permissible load current In’ (refer to the rated current In).
Prospective short-circuit current Ip
The prospective short-circuit current is the RMS value of the AC current compo-nent at the line frequency or the value of the DC current which can be expected in the case of a short-circuit which occurs after the fuse if it is considered that the fuse will be replaced by an ele-ment with an impedance which can be neglected.
Virtual time tv
The virtual time is the time which is obtained if the I2t value is divided by the square of the prospective current:
The virtual pre-arcing time tvs is speci-fied in the time/current characteristic.
Cyclic load factor WL
The cyclic load factor is a reduction fac-tor for the rated current for cyclic load states.
I2t i2 tdt0
t1
∫=
tv
i2∫ dt
Ip2
---------------=
Recovery voltage Vw
The recovery voltage (RMS value) is the voltage which is present at the connec-tions of a fuse link after the current has been interrupted.
Time/current characteristic
The time/current characteristic speci-fies, for specific operating conditions, the virtual time (e.g. the pre-arcing time) as a function of the prospective current.
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
122
Index
Page
Numerics
3NC1 0.. 763NC1 1.. 783NC1 4.. 80, 823NC1 5.. 843NC2 2.. 863NC2 4..-3 343NC5 531 923NC5 8.. 923NC7 3..-2 963NC8 4..-3 403NE1 0..-0 443NE1 0..-2 503NE1 2..-0 443NE1 2..-2 503NE1 3..-0 463NE1 3..-2 503NE1 4..-0 463NE1 4..-1 483NE1 4..-2 523NE1 8..-0 423NE3 22. 603NE3 23. 62, 643NE3 4.. 663NE3 5..-5 883NE3 6.. 663NE4 1.. 583NE4 1..-5 883NE4 3..-0B 563NE4 3..-6B 903NE4 337 563NE4 337-6 903NE5 4.. 683NE5 433-1 683NE5 6.. 703NE6 4.. 943NE6 437-7 943NE7 4.. 723NE7 6.. 723NE8 0..-1 543NE8 7..-1 36, 383NE9 440-6 943NE9 450 943NE9 450-7 943NE9 6.. 74
Page
A
Accessories 114Accessories for cylindrical fuses 30Accessories for l.v.h.b.c. fuses 26Actual clearing time 109Applications 4Arc I2t value 108Arc voltage Ûs 111, 113, 121
B
B2 107B6 107
C
Characteristics 34Clearing I2t value 108, 113Continuous interrupt-
free load 116Continuous load 115Converter circuit 107Correction factor kA 108Correction factor
ambient temperature 105Correction factor
connection cross-section 105Correction factor
valve conducting period 106Correction factor
increased air cooling 106Cyclic load factor 106Cyclic load factor WL 105, 121Cyclic load with
known load duty cycle 115, 117
D
DC current applications 113Defining the rated current 115Dimension drawings 98Double-3-pulse center-tap circuit 107
E
Environmental friendly recycling 6External short circuit 4
Page
F
File number 6Function Class 120Function Class a 120Function Class g 120Fuse bases 114Fuse currents
for converter operation 107Fuse puller 114Fused switch disconnector 114
G
Terminology 120Guide number 6
I
I2t value 108, 121l.v.h.b.c./h.v.h.b.c. Recycling 6Important notes 6Important information 6Indicator 114Influence of the power factor 109Internal short-circuit 4Inverter commutation faults 4Inverter operation 104
L
Load capacity 104Let-through current Ic 110, 120Let-through current characteristic 120Liability exclusion 7
M
M1 107M2 107M3 107M3.2 107M6 107Maximum clearing time 112
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
123
Page
O
Occasional impulse load 116, 118Ordering and engineering data 10
P
Parallel circuit 111Permissible DC voltage 113Possible arrangements 4Power dissipation 111, 121Properties 4Prospective short-circuit current Ip121
R
Rated frequency 120Rated interrupting capacity 111, 120Rated voltage Vn 104, 120Rated current In 104, 120Rectifier operation 104Recovery voltage 108Recovery voltage Uw 121Recycling 6Regulations 3Residual value factor RW 110, 121RMS value of the branch current 107RMS value of the phase current 107
S
Selection examples 116Series circuit 112Single-phase bi-directional circuit 107Single-pulse center-tap circuit 107SITOR fuse links 10, 34SITOR fuse links for
special applications 22, 88Six-pulse bridge circuit 107Six-pulse center tap circuit 107Switch disconnector with fuses 114
Page
T
Taking into account the pre-loading condition 110
Taking into account the recovery voltage 108
Technical information 104Temperature rise 111Test cross-sections 105Three-pulse center-tap circuit 107Time/current characteristic 121Time/current characteristics 109Two-pulse bridge circuit 107Two-pulse center-tap circuit 107
U
Unknown cyclic load 115, 117Updated information 6Utilization category 120
V
Virtual clearing time 109Virtual time tv 121
W
W1 107
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
124
Notes Kan
chan
Ene
terpr
ises
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com
Kanch
an E
neter
prise
s
Ph.no.-
2533
3226
/ 476
6
Email id
- e@
kanc
hana
nand
.com