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Schneider Electric LV431840

Schneider LV431840 ComPact NSX250N MCCB, 4-pole, 250 A, 85 kA

MPNLV431840
Obsolete

Schneider LV431840 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.

$618.92Ref. price · indicative, final on quote
Schneider Electric LV431840 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

LV431840 key specifications
ParameterValue
Control typeToggle
Network typeAC
Protection typeL : for overload protection (thermal) I : for short-circuit protection (magnetic)
Range of productComPact NSX100...250
Product or component typeCircuit breaker
Long-time protection delay adjustment type trFixed
Short-time protection delay adjustment type tsdFixed
Short-time protection pick-up adjustment type isdAdjustable
Long-time pick-up adjustment type ir (thermal protection)Adjustable
Voltage800 V AC 50/60 Hz
[Ue] rated operational voltage690 V AC 50/60 Hz
[Uimp] rated impulse withstand voltage8 kV

All specifications

LV431840 additional specifications
ParameterValue
Current250 A at 40 °C
[Ics] rated service short-circuit breaking capacity10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 35 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 36 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 90 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
[Icu] rated ultimate short-circuit breaking capacity85 kA at 240 V AC 50/60 Hz conforming to UL 508 10 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 35 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 480 V AC 50/60 Hz conforming to UL 508 36 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 90 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 15 kA at 600 V AC 50/60 Hz conforming to UL 508
Network frequency50/60 Hz
Poles4P
Protected poles description3t + N/2 3t 4t
Utilisation categoryCategory A
IK degree of protectionIK07 conforming to IEC 62262
IP degree of protectionIP40 conforming to IEC 60529
Mounting supportBackplate
Circuit breaker mounting modeFixed
Connection pitch35 mm
Upside connectionFront
Downside connectionFront
Pollution degree3 conforming to IEC 60664-1
Relative humidity0...95 %
Operating altitude0...2000 m without derating 2000 m...5000 m with derating
Electrical shock protection classClass II
Depth86 mm
Width140 mm
Height161 mm
Product weight2.8 kg
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
Mechanical durability20000 cycles
StandardsEN/IEC 60947
RangeComPact
Trip unit nameTM-D
Neutral positionLeft
Trip unit rating250 A at 40 °C
Device short nameNSX250N
Safety categoryN 50 kA 415 V AC
Device applicationDistribution
Overvoltage categoryClass II
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60947-2
Neutral protection settingsNo protection (3t)
Trip unit protection functionsLI
Ambient air temperature for storage-50...85 °C
Ambient air temperature for operation-25...70 °C
Number of slots for electrical auxiliaries5 slot(s)
[Tr] Long-Time protection delay adjustment range120...400 s at 1.5 x In 15 s at 6 x Ir
[Ir] long-time protection pick-up adjustment range0.7...1 x In
[Isd] short-time protection pick-up adjustment range5...10 x In

Product details

Overview

The LV431840 is a Schneider ComPact NSX250N molded case circuit breaker rated 250 A at 40 °C with an 85 kA breaking capacity (Icu) at 415 V AC, built on a 4-pole fixed-mount frame with a thermal-magnetic TM-D trip unit for L and I protection. It carries EN/IEC 60947 compliance, CCC, EAC, and Marine certifications, and is in active production — no obsolescence notice on this build code.

Compared to the 2-pole LV438720 (160 A, 10 kA Icu), the LV431840 delivers 85 kA Icu at 415 V AC and 250 A continuous, making it the correct choice for high-fault distribution boards where the LV438720's 10 kA would not clear a bolted fault on a 415 V supply.

MPN
LV431840