brochure 3np fuse switch disconnector

sentric

160 A1) Size 000 SIGUT terminal 1.5 50 3NP4010 0CH10160 A Size 00 Flat pad connection up to 2 x 70 (M8) 3NP4070 0CA01

SIGUT terminal 2.5 70 3NP4070 0CH01250 A Size 1 Flat pad connection up to 150 (M10) 3NP4270 0CA01400 A Size 2 Flat pad connection up to 240 (M12) 3NP4370 0CA10630 A Size 3 Flat pad connection up to 2 x 240 (M12) 3NP4470 0CA01

160 A1) Size 000 SIGUT terminal 1.5 50Connection, top 3NP4015 1CK01Connection, bottom 3NP4015 1CJ01

160 A Size 00 Flat pad connection up to 2 x 70 (M8)Connection, top 3NP4075 1CE01Connection, bottom 3NP4075 1CF01

SIGUT terminal 2.5 70Connection, top 3NP4075 1CK01Connection, bottom 3NP4075 1CJ01

250 A Size 1 Flat pad connection up to 150 (M10)top or bottom3) 3NP4275 1CG01

630 A Size 3 Flat pad connection up to 2 x 240 (M12)top or bottom3) 3NP4476 1CG01

all of the versions specified above (except size 000) are also available with mounted fusemonitoring; Order No. supplement: 3NP4.F.01

From size NH00 onwards, all of the 3NP4 versions arealso available with fuse monitoring. This is realizedusing 3RV SIRIUS circuit-breakers which are mountedat the front in the center of the fuse carrier.

The disconnector can then be fed as required fromeither the top or the bottom, whereby voltages up to690 V AC/220 V DC are possible. Furthermore, thistype of fuse monitoring is completely insensitive toEMC disturbances and harmonics. These disturbances

can frequently occur, e. g. in line supplies with ACdrive converters and inverters.

The circuit-breaker is connected in parallel to thethree main disconnector phases, and is tripped assoon as at least one of three fuses blows. The voltageis tapped at the handle lugs of the fuses which meansthat only fuses with live grip lugs can be used.

1NO/1NC signal outputs are used as standard. For size 00, they are brought out to a connector socket at the front, and for sizes 1 to 3, as double AMP flatconnector at the shock protection in the lower sectionof the disconnector.

Either pre-assembled 1- or 3-m cables with strainrelief can be used as connecting cable for size 00.These can then be easily inserted at the fuse monitor-ing using the mounted connectors. There are alsoconnector mounting sets for crimping (short-circuitproof) cables.

Flat connectors are always used for sizes 13.

The function of the 3RV can be tested at any timeusing the test button provided.

All-around safetyWith the cable lug covers correctlymounted, the enclosed disconnectors offer a high IP30 degree of protection, even after a voltage testusing the 6 test holes in the withdrawable fuse carri-er. The versions with SIGUT terminals are completelysafe from finger touch without any additional covers.

The large clear inspection window allows the typeand the operating statuses of the fuse links to bequickly and reliably identified. Overreach and reach-around touch protection is already integrated into the withdrawable fuse carrier up to 160 A; from Size 1 shock protection is available as accessory.

At home on all busbars All 3NP4 sizes are available for 40 mm or 60 mmbusbar center clearance. Busbars can either be 5 or10 mm wide. For 10 mm busbars, for sizes 000 and00, two lugs must be broken off at the three rearbusbar clamps. Busbar compensation is available as accessory for mounting sizes 1 and 2 onto 5 mmbusbars (size 3 disconnectors cannot only besnapped onto 5 mm busbars).

By simply snapping onto the busbars from the top,the disconnectors can also be mounted onto T ordouble T profiles as well as onto Power-Line systemsfrom the Rittal company, without the horizontal partsof the busbars preventing this.

Intelligent latching mechanismThis automatically adapts itself to busbar widthsbetween 5 and 30 mm, and it reliably latches into

place. This eliminates numerous versions andcomplicated adjustments before mounting. There is a small red button inside the switch, which,especially from size 1, ensures that the disconnec-tor is really mounted onto the busbar to its endstop.

This button prevents the shock protection from being inserted as long as the latching mechanismhasnt correctly latched into place.

Quickly mounted All of these features reduce valuable mounting and installation time. It also means that the correcttightening torque of the screws doesnt have to bechecked and adjusted. The mounting rail latchingmechanisms, integrated into the basic size 000 and00 devices, also provide a clear financial benefit,especially, where up to 160 A disconnectors are usedin larger unit quantities: additional screws, hooks,intermediate plates or a second mounting rail are not required.

Smart accessories for every applicationThe auxiliary contacts, which fit all sizes, can besubsequently retrofitted without taking up any extra space.

The three-way terminal makes it easy to connect up to 3 cables (e. g. for capacitor protection). Several disconnectors can be fed in parallel using the 3-phase busbars, connecting buses and feederterminals up to 225 A. Numerous masking framesand mounting sets for SIKUS distribution boards orthe 8HP distribution system guarantee simple engi-neering and fast mounting and installation.

Selection and ordering data3NP4 standard series

3NP4 standard series Accessories

Basic versions

With fuse monitoring 400 690 V AC, 220 V DC

For surface mounting and switchboard install. Connection in mm2

1) 125 and 160 A only with special, 21-mm-wide fuses 3NY1822 and 3NY1824, refer to Accessories2) Adapter depth, 28 mm; for disconnectors with deeper adapters (49 mm), refer to Catalog NSK, Section 123) Connection modules can be replaced, refer to the Instruction Manual

for 3NP401 for 3NP407 for 3NP42 for 3NP43 for 3NP44Size 000 Size 00 Size 1 Size 2 Size 3

Connection terminals integrated integrated 3NY7120 3NY7130 3NY7140(1 set = 3 units) connection: 70 150 mm2 120 240 mm2 150 300 mm2

Cable lug cover not required 3NY7101 3NY7121 3NY7131 3NY7141(1 set = 3 units) safe from finger touch cover of the flatpad connection acc. to VBG4

Auxiliary contact, 1 changeover contactnormal version 3NY3035 3NY3035 3NY3035 3NY3035 3NY3035electronics-compatible 3NY3030 3NY3030 3NY3030 3NY3030 3NY3030

Quick retaining plate 3NY1995 3NY1995 3NY7322 to mount the disconnectors between two mounting rails (125 mm clearance)

Busbar width compensationonly for 5 mm busbars not required not required 3NY7381 3NY7381 not possiblefor 10 mm busbars break-off break-off not required not required not required

Three-way terminal(1 set = 3 units) to connect3 x 2.5 16 mm2 (e/m) or 3 x 2.5 10 mm2 (finely stranded with end sleeves) for mounting onto a SIGUT terminal 3NY7102 3NY7102 for mounting onto a flat pad connection 3NY7105

3-phase busbarsfor 2 disconnectors 3NY1237 for 3 disconnectors 3NY1238 for 4 disconnectors 3NY1438 connecting buses for > 4 disconnectors 3NY1263 cap for empty location (20x units): 3NY1265

Incoming supply terminal 3NY1236 (1 set = 3 units) for conduc-tors e/m: up to 95 mm2

finely stranded with end sleeves: up to 70 mm2

Fuse links, size 00021 mm wide, Duty class gL/gC400 V/125 A 3NY1822 400 V/160 A 3NY1824

Sealing pin integrated integrated 3NY7482 3NY7482 3NY7482can be retrofitted (1 pkg. = 10 units)

Masking framesfor mounting in general distribution systemsfor disconnectors with SIGUT terminal 3NY1251 3NY7200 for disconnectors with flat pad connection 3NY7201 3NY7220 3NY7230 3NY7240Dimensions (H x W): 215 x 130 215 x 130 375 x 220 375 x 245 375 x 290

Overreach protection integrated integrated 3NY7481 3NY7481 3NY7481(10 units)

for spare parts, refer to Catalog NSK, Section 12 for masking frames and mounting sets for 8HP molded-plastic distribution systems, refer to Catalog

E20001-8ZX1012-OHP54-5AB1

3NP4 quickly mounted onto all busbars

Fuse monitoring for 3NP4

Type 3NP401 3NP40 7 3NP42 3NP43 3NP44

Rated operational voltage Ue AC 50/60 Hz V 690 690DC V 220 (3 phases in series) 440 (2 phases in series)

with mounted fuse monitoring upt to 220 V DC max.

Rated conditional short-circuit current with fuses (for fast closing)With fuse links rated current Size/A 000/100 (35) 00/160 1/250 2/400 3/630For 400 V AC (690 V) kA (RMS value) 50 (50) 50 50 50 50Permissible fuse cut-off current kA (peak value) 11 (5) 15 25 35 55

Short-circuit strength with fuse(with the disconnector closed)With fuse links rated current Size/A 000/100 00/160 1/250 2/400 3/630Up to 690 V kA (RMS value) 100 50 50 50 50Permissible fuse cut-off current kA (peak value) 15 15 25 35 55

Rated operational current and switching capacity (supply from either the top or bottom) For 400 V AC, with fuse links or isolating links Size 000 00 1 2 3Rated breaking current Ic (cos p = 0.35) A (RMS value) 800 800 2,000 3,200 5,040Rated operating current Ie for AC-21B, AC-22B A 160 160 250 400 630

AC-23B A 100 100 250 400 630

For 690 V AC, with fuse links or isolating links Size 000 00 1 2 3Rated breaking current Ic (cos p = 0.35) A (RMS value) 240 240 375 600 945Rated operating current Ie for AC-21B A 160 160 250 400 630

AC-22B A 50 50 AC-23B A 25 25

For 40 mm busbars2) Connection in mm2

For 60 mm busbars Connection in mm2

Accessories

Technical data

for additional values, refer to Catalog NSK, Section 12 (e. g. capacitor and DC switching capacity, switching capacity at 500 V AC, ...)

3NP Fuse Switch Disconnector the Optimum Handle on Every Application

Fuses for overload and short-circuit protection means: high short-circuit currents

can also be safely handled, favorably-priced backup protection, simple selectiv-

ity calculations and absolute reliability, even when short-circuits occur. The fuse

melts completely so that there is no residual risk as a result of contacts which

may have welded together. When the disconnector is in the open position,

there is a visible isolating gap, which is often demanded, e. g. for maintenance

purposes. And the optional mounted fuse monitoring offers additional security

fuse switch disconnectors 3NP for the highest plant availability and safety.

2 series in the range the optimum handle onevery applicationThe 3NP4 series (sizes NH000 to NH3) offer theoptimum solution for most applications. These rangefrom power distribution in residential and commer-cial buildings, through flexible distribution stationsup to power distribution systems in large industrialplants.They are also admirably suited as main andincoming feeder breakers in industry, for control systems, as well as in motor feeders or as backupprotection for circuit-breakers. They have an integratedlug for sealing which is integrated as standard. This means that they can be used, without anyrestrictions, in meter cabinets and incoming mainfeeder boxes for buildings.

The rugged 3NP5 series (sizes NH00 to NH3)provide reliable protection for all of the tougherapplications. This is especially true in mining, in thesteel industry, and also in the chemical industry,where sulphur-laden, or aggressive ambient condi-tions or hazardous locations make it almost impossi-

ble to use other disconnectors available on the mar-ket. But the fast closing and arc deflection chambersof the 3NP5 come through with flying colors. 3NP5provides the highest degree of safety for operatingpersonnel and the plant, as main switch with highswitching frequency and good AC-23 characteristics,e.g. for motor loads.

Both of these ranges are climate-proof and corre-spond to IEC 60 947-3 and VDE 0660, Part 107.The fuses can be clearly identified through the largeclear inspection window.Matching masking frames and complete, TSK-testedmounting sets are available both for the molded-plastic 8HP distribution system as well as for thevarious SIKUS distribution boards.

The values for switching capacitors (e.g. for reactivepower compensation) were also tested (refer toCatalog NSK, Section 12), and when used with SITORsemiconductor or 3NE1 double-protection fuses, 3NP disconnectors can be used to protect soft starters,AC drive converters and similar devices (tables withtested device-fuse combinations are provided in theNSK). Shock and vibration testing as well as specialearthquake tests guarantee that the 3NP can be usedin marine applications, nuclear power stations andsimilar safety-critical plants.

Fuses for your safety 3NP4 and 3NP5 switch disconnectors

The 3NP5 disconnector series (sizes NH00 to NH3)for fixed installation can be quickly hung onto pre-installed mounting bolts. They can also be mountedon the front of switchgear panels using the match-ing mounting sets or they can be mounted onto 60 mm busbar systems using 8US1 adapters.

The especially rugged design of this series (plasticwith a high resistance to heat, metal parts which canbe mechanically stressed), permits an unusually

high switching frequency for devices such as these.The erosion electrodes additionally extend the life-time of the main contacts. The lateral spring mecha-nism (= fast switching) eliminates any danger as a result of incorrect operation, e.g. briefly actuatingthe disconnector or switching which is too slow.

Furthermore, 3NP5 have an extremely high AC-23switching capacity. The switching gases which areformed are deflected into the disconnector using asophisticated arc chamber design, instead of beingdischarged upwards and to the side. This means that operating personnel and plant sections andcomponents in the vicinity are reliably protected.

Fuse monitoring:To allow monitoring of the fuses in the disconnectors,a permanently wired 3RV1 circuit-breaker is mountedon the fuse carrier.

When the switch disconnector is in the ON position,the circuit-braker poles are connected in parallelwith the fuses to be monitored. When the switch isin the OFF position, the poles of the circuit-breakerare dead.

The internal resistance of the circuit-breaker is sohigh that it does not affect the protection given bythe monitored fuses.

Electronic fuse monitoring (EFM):The electronic fuse monitoring system is also mounted on the fuse carrier of the 3NP5. It workswhether or not a load is present. Fuse blowing canbe signalled to a switch control room by means of agroup indication (2NO contacts + 1NC contact).

3NP5 the rugged types forthe toughest applications

3NP5 high end series Accessories

for 3NP50 for 3NP52 for 3NP53 for 3NP54Size 00 Size 1 Size 2 Size 3

Clamp connection 3NY1903 3NY1907 (1 set = 3 units) 2.5 50 mm2 35 120 mm2

Quick retaining plate 3NY1995 between 2 mounting rails

Adapter 8US1291- 8US1210- 8US1210- 8US1210-for mounting -4SB00 -4AG00 -4AG00 -4AG00on 60 mm busbars

Molded-plastic masking framesDimensions (H x W): 3NY1105 for disconnectors 215 x 135without/with auxiliary contacts

Dimensions (H x W): 3NY1115 for disconnectors 215 x 135with auxiliary contacts

Dimensions (H x W): 3NY1107 265 x 135

Masking frame 3NY1208 3NY1210 3NY1211 3NY1212mounting set 250 x 149 300 x 220 300 x 245 300 x 290Dimensions (H x W):for mounting the discon-nector in the front of the switchgear panel (masking frame and mounting parts)

Cable lug coverMasking frame (H x W) 3NY1106 for disconnectors without/ 290 x 135with auxiliary contacts

Masking frame (H x W) 3NY1116 for disconnectors 290 x 135with auxiliary contacts

2 separate covers for 3NY1108 top/bottom

6 individual covers 3NY1241 3NY1245 3NY1245(L = 120 mm)

Auxiliary contacts 3NY3033 3NY3034 3NY3034 3NY30341NO/1NC(= mounting set)

Sealing lug 3NY1940 can be retrofitted(1 pkg. = 10 units)

8ZX1012-OHP54-5AB1 for masking frames and mounting sets for SIKUS installation distribution panels, refer to Catalogs

I2.34 and 12.35

Type 3NP50 3NP52 3NP53 3NP54

Rated operational voltage Ue 50/60 Hz V AC 690V DC 440 (3 phases in series)

220 (2 phases in series with mounted fuse monitoring)

Rated conditional short-circuit current with fusesWith fuse links rated current Size/A 00/160 1/250 2/400 3/630For 500 V AC kA (RMS value) 50 50 50 50Permissible fuse cut-off current kA (peak value) 15 25 40 50

Short-circuit strength with fuse (with the disconnector closed) With fuse links rated current Size/A 00/160 1/250 2/400 3/630For 500 V AC kA (RMS value) 100 100 50 50Permissible fuse cut-off current kA (peak value) 23 32 40 60

Rated operating current and switching capacity(supply from either the top or bottom)For 400 V AC, with fuse links or isolating links Size 00 1 0 2 1 3 2Rated breaking current Ic (cos p = 0.35) A (RMS value) 1,600 2,500 1,600 4,000 2,500 5,040 4,000Rated operating current Ie for AC-21B up to AC-23B A 160 250 160 400 250 630 400For 690 V AC, with fuse links or isolating links Size 00 1 0 2 1 3 2Rated breaking current Ic (cos p = 0.35) A (RMS value) 800 1,280 1,000 2,520 1,600 3,200 2,520Rated operating current Ie for AC-21B, AC-22B A 160 250 160 400 250 630 400

AC-23B A 100 160 125 315 200 400 315

Siemens AG

Automation and Drives

Low Voltage Controls and Distribution

P. O. Box 32 40, D-91050 Erlangen

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Technical data

for additional values refer to Catalog NSK, Section 12 (e. g. capacitor and DC switching capacity, switching capacity at 500 V AC, )

Accessories

Selection and ordering data3NP5 high end series

1) for mounting on 60 mm busbars, use devices for surface mounting and installation and 8US1 busbar adapters2) optionally, 2 NO as signal outputs: Order No. 3NP5.E.26

For surface mounting and switchboard install. in mm2 Auxiliary contacts

160 A Size 00 Flat pad connection 2.5 120 without 3NP5060 0CA001NO/1NC 3NP5060 0CA00

Clamp connection 2.5 50 without 3NP5060 0CB001NO/1NC 3NP5060 0CB10

250 A Size 1 Flat pad connection 6 150 without 3NP5260 0CA001NO/1NC 3NP5260 0CA10

Clamp connection 35 120 without 3NP5260 0CB001NO/1NC 3NP5260 0CB10

630 A Size 3 Flat pad connection 6 2 x 240 without 3NP5460 0CA001NO/1NC 3NP5460 0CA10

For 40 mm busbars1) in mm2 Auxiliary contacts

160 A Size 00 Flat pad connection 2.5 120 without 3NP5065 1CF00at the bottom 1NO/1NC 3NP5065 1CF10

Clamp connection 2.5 50 without 3NP5065 1CG00at the bottom 1NO/1NC 3NP5065 1CG10

For surface mounting and switchboard install. in mm2 Auxiliary contacts2)

160 A Size 00 Flat pad connection 2.5 120 1NO/1NC 3NP5060 0EA86Clamp connection 2.5 50 1NO/1NC 3NP5060 0EB86

250 A Size 1 Flat pad connection 6 150 1NO/1NC 3NP5260 0EA86Clamp connection 35 120 1NO/1NC 3NP5260 0EB86

400 A Size 2 Flat pad connection 6 240 1NO/1NC 3NP5360 0EA86

630 A Size 3 Flat pad connection 6 2 x 240 1NO/1NC 3NP5460 0EA86

For 40 mm busbars1) in mm2 Auxiliary contacts2)

160 A Size 00 Flat pad connection 2.5 120 1NO/1NC 3NP5065 1EF86at the bottom

Clamp connection 2.5 50 1NO/1NC 3NP5065 1EG86at the bottom

160 A Size 00 Flat pad connection 2.5 120 1NO/1NC 3NP5060 0HA13Clamp connection 2.5 50 1NO/1NC 3NP5060 0HB13

250 A Size 1 Flat pad connection 6 150 1NO/1NC 3NP5260 0HA13

630 A Size 3 Flat pad connection 6 2 x 240 1NO/1NC 3NP5460 0HA13

160 A Size 00 at Flat pad connection 2.5 120 1NO/1NC 3NP5065 1HF13the bottom

Basic versions

With electronic fuse monitoring 400/500 V AC

I2.34 and 12.35

AC-23B A 100 160 125 315 200 400 315

Siemens AG

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Technical data

Accessories

Basic versions

I2.34 and 12.35

AC-23B A 100 160 125 315 200 400 315

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Technical data

Accessories

Basic versions

I2.34 and 12.35

AC-23B A 100 160 125 315 200 400 315

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Technical data

Accessories

Basic versions

3NP4 standard

Basic versions

for 3Size

Connection terminals inte(1 set = 3 units) connection:

Cable lug cover not (1 set = 3 units) safe from finger touch cover of the flatpad connection acc. to VBG4

Auxiliary contact, 1 changeover contactnormal version 3NYelectronics-compatible 3NY

Quick retaining plate 3NYto mount the disconnectors between two mounting rails (125 mm clearance)

Busbar width compensationonly for 5 mm busbars not for 10 mm busbars brea

Three-way terminal(1 set = 3 units) to connect3 x 2.5 16 mm2 (e/m) or 3 x 2.5 10 mm2 (finely stranded with end sleeves) for mounting onto a SIGUT terminal 3NYfor mounting onto a flat pad connection

3-phase busbarsfor 2 disconnectors 3NYfor 3 disconnectors 3NYfor 4 disconnectors 3NYconnecting buses for > 4 disconnectors 3NYcap for empty location (20x units): 3NY

Incoming supply terminal 3NY(1 set = 3 units) for conduc-tors e/m: up to 95 mm2

Fuse links, size 00021 mm wide, Duty class gL/gC400 V/125 A 3NY400 V/160 A 3NY

Sealing pin intecan be retrofitted (1 pkg. = 10 units)

Masking framesfor mounting in general distribution systemsfor disconnectors with SIGUT terminal 3NYfor disconnectors with flat pad connection Dimensions (H x W): 215

Overreach protection inte(10 units)

for spare parts, refer to Catalog N for masking frames and mountin

E20001-8ZX1012-OHP54-5AB1

Accessories

All-around safetyWith the cable lug covers corenclosed disconnectors offer protection, even after a voltaholes in the withdrawable fuswith SIGUT terminals are comtouch without any additional

The large clear inspection winand the operating statuses ofquickly and reliably identifiedaround touch protection is althe withdrawable fuse carrierSize 1 shock protection is ava

At home on all busbars All 3NP4 sizes are available fobusbar center clearance. Busb10 mm wide. For 10 mm bus00, two lugs must be broken busbar clamps. Busbar compeas accessory for mounting sizbusbars (size 3 disconnectorssnapped onto 5 mm busbars)

By simply snapping onto the the disconnectors can also bedouble T profiles as well as onfrom the Rittal company, withof the busbars preventing this

Basic versions

E20001-8ZX1012-OHP54-5AB1

3NP4 quickly mouFor 40 mm busbars2) Connection in mm2

Accessories

sentric

Basic versions

E20001-8ZX1012-OHP54-5AB1

Type 3NP401 3NP40 7 3NP42 3NP43 3NP44

AC-23B A 100 100 250 400 630

AC-22B A 50 50 AC-23B A 25 25

Accessories

Technical data

sentric

Basic versions

E20001-8ZX1012-OHP54-5AB1

Type 3NP401 3NP40 7 3NP42 3NP43 3NP44

AC-23B A 100 100 250 400 630

AC-22B A 50 50 AC-23B A 25 25

Accessories

Technical data

Auxili

brochure 3np fuse switch disconnector

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