lv fuse technical details
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8/11/2019 LV Fuse Technical Details
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HRC Fuse-LinksBlade Type HN 63 A - 800 ACylindrical Type HF 2 A - 63 A
Energy Saving
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8/11/2019 LV Fuse Technical Details
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IS 13703 / IEC 60269 New Standard for HRC fuses superceding IS 9224
HN & HF Fuse-Links conform to the new standard and will offer the following advantages :Low watt lossNon deterioration of fuse-linksProper protection to cablesComplete discrimination
New standard means more advantage for you
High breaking capacity : 100 kA for HN Type and 80 kA for HF Type
Fuse blown indication : Through a red pop-up indicator. Low let through energy
Low watt loss : Lower Power Loss in our fuses, gives you
Saving of powerCooler running of associated products like SDFs conform to
IS 13703 (Part 2) / IEC 60269-2
Features and benefits
L&T, India's largest manufacturer of low tension switchgear,offers the new generation of low watt loss HRC fuse-links typeHN & HF designed as per the new IS 13703 / IEC 60269 standards.
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8/11/2019 LV Fuse Technical Details
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Rated voltage : 415 V Rated breaking capacity : 80 kA at 415 V
Technical data for HF & HN
Selection Chart for Blade Type Fuse-Links - HN
Selection Chart for Cylindrical Type Fuse-Links - HF
1
Rating (A) Cat. No.Suitable for S-D-F Units
type FN / FNX or Equivalent
2
4
6
8
10
16
20
25
32
40
50
63
SF90144
SF90145
SF90146
SF90147
SF90148
SF90150
SF90151
SF90152
SF90142
SF90143
SF90158
SF90159
32, 63
32, 63
32, 63
32, 63
32, 63
32, 63
32, 63
32, 63
32, 63
63
63
63
Guidelines for selection
While selecting fuse-links, the following points should be considered :
Fuse-links type HF & HN are suitable for system voltage up to 415 V
Select the suitable size and rating of fuse-link for switch-disconnector fuse unit as per the fuse selection chart
Ensure that the breaking capacity of the fuse link is higher than the prospective fault current
Fuses should be selected such that discrimination is achieved with other protective devices in the system
Rated voltage : 415 V Rated breaking capacity : 100 kA at 415 V
63 A
80 A
100 A
63 A
80 A
100 A
125 A
160 A
80 A
100 A
125 A
160 A
200 A
125 A
160 A
200 A
250 A
315 A
200 A
250 A
315 A
400 A
315 A
400 A
500 A
630 A800 A
SF94940
SF94941
SF94942
SF94027
SF94028
SF94029
SF94030
SF94939
SF94128
SF94129
SF94130
SF94131
SF94132
SF94230
SF94231
SF94232
SF94233
SF94234
SF94332
SF94333
SF94334
SF94335
SF94434
SF94435
SF94436
SF94437SF94938
5.3
6.2
7
5.7
6.9
7.5
9.8
12
8.3
9.1
11.3
12.7
14.5
10.3
12.3
14.3
17.3
25.5
14.1
16.9
20.2
24.9
20.5
26.7
36.1
42.248
100 Amp,Fuse-7.5W
100, 125, 160
100, 125, 160
100, 125, 160
100, 125, 160
100, 125, 160
100, 125, 160
125, 160
160
200
200
200
200
200
250, 315
250, 315
250, 315
250, 315
315
400
400
400
400
630, 800
630, 800
630, 800
630, 800800
Size 000
Size 00
Size 0
Size 1
Size 2
Size 3
Size of thefuse link
Rating Cat. No.Rated
watt loss
Watt loss limitsas per IS 13703
Suitable for S-D-Funitstype FN / FNX or Equivalent
100 Amp,Fuse-7.5W
630 Amp,
Fuse-48W
400 Amp,
Fuse-34W
250 Amp,
Fuse-23W
160 Amp,
Fuse-16W
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8/11/2019 LV Fuse Technical Details
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HF FUSE-LINK
HN FUSE-LINK
All dimensions are in mm
Overall Dimensions
TYPE
SIZE 1SIZE 2
SIZE 3
A
20.425.4
32.4
B
135150
150
C
11.014.0
17.5
D
4659
73
E
4048
60
F
4659
73
51
Indicator
14.3
Size 000
20
6 106
42.4
51.8
2.9
45.5
51
79
8
15
67.662 2.8
125
14
15.4
Size 0
47
39
6
35
10
2.9
6
10
20
49.6
45.6 2
9.5
15.4
78.4 72
6
34
35
9.5
2.5
6
10
71
Size 00
67.2
61 3.1
A
B
C
D
20
10
6
2.5
10
6
F
E
Size 1 / 2 / 3
2
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Fuse BasesSuitable forCylindrical
Contact Caps
Fuse BasesSuitable forBlade Contacts
TypeSuitable
Fuse Type Cat. No.
HC
HCOFuse Pulling Handle
HB 160 Single Pole Fuse Base
HB 250 Single Pole Fuse Base
HB 800 Single Pole Fuse Base
Fuse Pulling Handle
HF 2-63
HF 2-32HF 2-63
HN size 00
HN size 0 & 1
HN size 2 & 3
HN 63-800
SK91043
SK91314SK91185
SK90405
SK90406
SK91051
SK90126
HB 250
All dimensions are in mm
HB 800
67
44
82
TypeHC*
63A415Vac
25
129
105
25O7.5
22
60
33
HCO / HC HB 100
25
53
19
210
60
O10.5
30
40
25
155
Fuse Base
3
Overall Dimensions
207
80+3-0
155
88
39.5
2HOLES O10.5 FOR M10
FOR MOUNTING
2 HOLES O9 FOR M8FOR MOUNTING
175
6040
6426
12
30
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HRC FUSE-LINKS TYPE HF
Time-Current Characteristics
PRE-ARCINGT
IM
E(SECONDS)
SYMMETRICAL CURRENT (AMPERES)
Cut-off Current Characteristics
CUT-OFFCURRENT-kA
(PEAK)
(ASYMMETRICALFAULTCO
NDITIONS)
PROSPECTIVE CURRENT - kA (RMS) SYMMETRICAL
4
4
4
2
2
4
2
4
2
4
2
4
2
4
104
102
101
100
101
102
103
2 3 4 5 2 3 4 5 2 3 4 5 2 3 4 5101
102
103
104
2A
4A
6A
8B10A
16A
20A
25A
32A
40A
50A
63A
63 A
50 A32 A20 A
40 A25 A
16 A
8 A
6 A
4 A
2 A
10 A
10
1.0
0.1
0.01 0.1 1.0 10 802 4 6 8 2 4 6 8 2 4 6 8 2 4 6
Characteristics Curve
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HRC FUSE-LINKS TYPE HN
Time-Current Characteristics
Cut-off Current Characteristics
PRE-ARCINGT
IME(SECONDS)
SYMMETRICAL CURRENT (AMPERES)
CUT-OFFCURRENT-kA
(PEAK)
(ASYMMETRICALFAULTCO
NDITIONS)
PROSPECTIVE CURRENT - kA (RMS) SYMMETRICAL
Characteristics Curve
5
104
103
102
101
100
10-1
10-2
2
4
2
4
2
4
2
4
4
2
4
2
4
4 5 2 3 4 5 2 3 4 5 2 3 4 5 2 3 4101
102
103
104
63A
80A
100A
125A
160A
200A
250A
315A
400A
500A
630A
0.1 0.2 0.5 1 2 5 10 20 50 80 100 B
630 A
500 A400 A315 A250 A
200 A160 A
125 A
100 A80 A63 A
100
50
20
10
5
2
1
0.5
0.2
0.1
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8/11/2019 LV Fuse Technical Details
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Electrical Standard Products
Larsen & Toubro Limited
Powai Campus, Mumbai 400 072
Tel: 022-67050505
Fax: 022-6705 1746
E-mail: esp@LNTEBG.com
Website: www.LNTEBG.com
SP 01955-R 110707
For selection and product demonstration, please contact any of our branch offic es listed below:
Product improvement is a continuous process. For the latest information and special applications, please contact any of our offices listed here.
L&T HouseGroup MIG - 5PadmanabhpurDurg491 001Tel: 0788-2213833 / 14 / 28 / 29Fax: 0788-2213820
A1/11, Astronauts AvenueBidhan NagarDurgapur 713 212Tel: 0343-2536493 / 39Fax: 0343-2536493e-mail: esp-dgp@Lntebg.com
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e-mail: esp-gau@Lntebg.com
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