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Schneider Electric C25B44V250 — Residual Current Breakers (RCCB/RCBO)

Schneider C25B44V250 ComPacT NSX MCCB, 250 A, 40 kA, 4-pole

MPNC25B44V250
Active

Schneider C25B44V250 Compact Nsx, New Generation — now discontinued, supplied from remaining surplus and broker stock.

$1,302.87 – $2,748.06Ref. price · indicative, final on quote
Schneider Electric C25B44V250 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jun 2026

Specifications

C25B44V250 — Residual Current Protection
ParameterValue
Earth-leakage protection class / typeClass A
Trip unit technologyElectronic
Local signalling / indicationFlashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload
C25B44V250 — Electrical Ratings
ParameterValue
Rated current (In)250 A at 40 °C
Rated operational voltage (Ue)440 V AC 50/60 Hz
Poles description4P
Neutral pole positionLeft
Network typeAC
Network frequency50/60 Hz
Rated insulation voltage (Ui)500 V AC 50/60 Hz
Rated impulse withstand voltage (Uimp)8 kV
Overvoltage categoryIV
Electrical durability20000 cycles at 440 V In/2 10000 cycles at 440 V In 10000 cycles at 690 V In/2 5000 cycles at 690 V In
Mechanical durability (operating cycles)20000 cycles
C25B44V250 — Identification
ParameterValue
Product nameComPacT NSX
Product / component typeEarth leakage circuit breaker
Product range / familyComPacT
Device short nameNSX250B
C25B44V250 — Mechanical
ParameterValue
Mounting supportBackplate
Mounting positionHorizontal and vertical Flat on the back
Control typeToggle
C25B44V250 — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-50...85 °C
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60664-1
Relative humidity0...95 %
Operating altitude0...2000 m without derating 2000 m...5000 m with derating
C25B44V250 — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

Overview

The C25B44V250 is a Schneider ComPacT NSX molded case circuit breaker rated 250 A at 40 °C with a 40 kA breaking capacity, built for distribution duty on a 4-pole AC network. It carries a MicroLogic 4.2 electronic trip unit covering overload (L), short-time (So), instantaneous (I), and earth-leakage (R) protection, and is listed to EN/IEC 60947-2.

MPN
C25B44V250