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  • Schneider Electric Compact NSX250B Circuit breaker TMD 250A 3 poles 3d LV431110 N E W
  • Schneider Electric Compact NSX250B Circuit breaker TMD 250A 3 poles 3d LV431110

Schneider Electric Compact NSX250B Circuit breaker TMD 250A 3 poles 3d LV431110

Compact NSX250B Circuit breaker TMD 250A 3 poles 3d
Model :LV431110
SKU :LV431110
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Description for Schneider Electric Compact NSX250B Circuit breaker TMD 250A 3 poles 3d LV431110


Schneider Electric Compact NSX250B Circuit breaker TMD 250A 3 poles 3d LV431110

This Compact NSX250B is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all standard and specific applications. The breaking capacity (Icu) is 25kA rms at 415VAC 50/60Hz. The operational voltage is 690VAC 50/60Hz. This product embeds a 250A rating thermal-magnetic trip unit (TMD). TMD trip unit provides an adjustable thermal overload protection and a fixed magnetic protection. This 3 poles version (105mm x 161mm x 86mm) comes with a variety of optional functions and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications. Compact NSX250B is part of Schneider Electric EcoStruxure Power architecture.

Specifications


Main
RangeComPact
Product nameComPact NSX
Range of productComPact NSX100...250
Device short nameNSX250B
Product or component typeCircuit breaker
Device applicationDistribution
Number of poles3P
Protected poles description3t
[In] rated current250 A at 40 °C
[Ue] rated operational voltage690 V AC 50/60 Hz
Network typeAC
Network frequency50/60 Hz
Suitability for isolationYes conforming to EN/IEC 60947-2
Utilisation categoryCategory A
[Icu] rated ultimate short-circuit breaking capacity15 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2
20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
40 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
Performance levelB 25 kA 415 V AC
Trip unit nameTM-D
Trip unit technologyThermal-magnetic
Trip unit protection functionsLI
Control typeToggle
Circuit breaker mounting modeFixed

Complementary
[Ui] rated insulation voltage800 V AC 50/60 Hz
[Uimp] rated impulse withstand voltage8 kV
[Ics] rated service short-circuit breaking capacity20 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2
25 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
40 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
15 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2
Mechanical durability20000 cycles
Electrical durability5000 cycles at 690 V In
10000 cycles at 690 V In/2
10000 cycles at 440 V In
20000 cycles at 440 V In/2
Mounting supportBackplate
upside connectionFront
Downside connectionFront
Connection pitch35 mm
Protection typeL : for overload protection (thermal)
I : for short-circuit protection (magnetic)
Trip unit rating250 A at 40 °C
Long-time pick-up adjustment type Ir (thermal protection)Adjustable
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Long-time protection delay adjustment type trFixed
[tr] long-time protection delay adjustment range120…400 s at 1.5 x In
15 s at 6 x Ir
Short-time protection pick-up adjustment type IsdAdjustable
[Isd] Short-time protection pick-up adjustment range5...10 x In
Short-time protection delay adjustment type tsdFixed
Earth-leakage protectionWithout
Number of slots for electrical auxiliaries5 slot(s)
Width (W)105 mm
Height (H)161 mm
Depth (D)86 mm
Net weight2.4 kg

Environment
StandardsEN/IEC 60947
Product certificationsCCC
EAC
Marine
Overvoltage categoryClass II
Electrical shock protection classClass II
Pollution degree3 conforming to IEC 60664-1
IP degree of protectionIP40 conforming to IEC 60529
IK degree of protectionIK07 conforming to IEC 62262
Ambient air temperature for operation-25…70 °C
Ambient air temperature for storage-50…85 °C
Relative humidity0…95 %
Operating altitude0...2000 m without derating
2000 m...5000 m with derating

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