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Schneider Electric C11B44V025B — Residual Current Breakers (RCCB/RCBO)

C11B44V025B ComPacT NSXm 4P 25A MCCB, 25 kA 415 V AC

MPNC11B44V025B
Active

Schneider Electric ComPacT NSXm, 4P MCCB, 25 A at 40 °C, 25 kA 415 V AC, MicroLogic 4.1 electronic trip unit, integrated earth-leakage protection, grey (RAL 7016).

Schneider Electric C11B44V025B datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C11B44V025B — Residual Current Protection
ParameterValue
Earth-leakage sensitivity (IΔn)30 mA for class A 100 mA for class A 300 mA for class A 500 mA for class A 1 A for class A 30 mA for class AC 100 mA for class AC 300 mA for class AC 500 mA for class AC 1 A for class AC 3 A for class AC 5 A for class AC
Earth-leakage protection class / typeClass A Class AC
Trip unit technologyElectronic
Local signalling / indicationFlag (green) for presence of auxiliary contacts
C11B44V025B — Electrical Ratings
ParameterValue
Rated current (In)25 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
Mechanical durability (operating cycles)20000 cycles
C11B44V025B — Identification
ParameterValue
Product nameComPacT NSXm
Product / component typeEarth leakage circuit breaker
Product range / familyComPacT
Device short nameNSXm 63B
C11B44V025B — Mechanical
ParameterValue
Mounting supportBackplate
Mounting positionHorizontal and vertical Flat on the back
Control typeToggle
Width in 9 mm modules12 module
C11B44V025B — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-40...85 °C
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60664-1
Relative humidity0...95 %
Operating altitude2000 m without derating 5000 m with derating
C11B44V025B — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

The C11B44V025B is a Schneider Electric ComPacT NSXm 4-pole MCCB rated 25 A at 40 °C with a MicroLogic 4.1 electronic trip unit. The integrated earth-leakage protection is adjustable across sensitivities from 30 mA to 5 A for both class A and class AC residual currents.

The 4-pole configuration with neutral on the left and front-facing connections (both upside and downside) makes it a straightforward swap in a panel where the busbar layout and compression-lug terminals are already sized for the NSXm footprint. Mounts flat on the backplate in horizontal or vertical orientation.

Deployment context

Rated for distribution duty in a panel environment — IP40 front face, IK07 impact protection. The 12-module 9 mm pitch (108 mm wide) fits standard backplate mounting.

Frequently asked questions

What is the closest alternative to C11B44V025B in the same family?

Within the ComPacT NSXm range, the closest alternative would be a different amp rating or pole count in the same 63B frame. No pin-compatible drop-in exists with identical trip curve and earth-leakage settings; verify the specific trip unit and sensitivity before substituting.

MPN
C11B44V025B