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Schneider Electric C11N44V050B — Residual Current Breakers (RCCB/RCBO)

C11N44V050B ComPacT NSXm MCCB, 50 A, 50 kA at 415 V AC

MPNC11N44V050B
Active

Schneider Electric ComPacT NSXm, 4P MCCB, MicroLogic 4.1 electronic trip unit, 50 A at 40 °C, 50 kA at 415 V AC, integrated earth-leakage protection, grey (RAL 7016), IP40, IK07.

Schneider Electric C11N44V050B datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C11N44V050B — 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
C11N44V050B — Electrical Ratings
ParameterValue
Rated current (In)50 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
C11N44V050B — Identification
ParameterValue
Product nameComPacT NSXm
Product / component typeEarth leakage circuit breaker
Product range / familyComPacT
Device short nameNSXm 63N
C11N44V050B — Mechanical
ParameterValue
Mounting supportBackplate
Mounting positionHorizontal and vertical Flat on the back
Control typeToggle
Width in 9 mm modules12 module
C11N44V050B — 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
C11N44V050B — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

The C11N44V050B is a Schneider Electric ComPacT NSXm 4-pole MCCB with a MicroLogic 4.1 electronic trip unit rated 50 A at 40 °C. The electronic trip unit includes integrated earth-leakage protection with selectable sensitivity (30 mA to 5 A, class A or AC), so this single device handles both overcurrent and ground-fault protection in one footprint. Rated for EN/IEC 60947-2, the standard for low-voltage switchgear and controlgear. Overvoltage category IV confirms suitability at the service entrance or main distribution panel.

Deployment context

The 108 mm width and 144 mm height occupy 12 module pitches at 9 mm each, so it fits standard DIN-rail-mounting-compatible enclosures. Front connections accept compression lugs or busbars; connection pitch is 35 mm with spreaders, 27 mm without. IP40 enclosure rating (IK07 impact) suits panel-mounted indoor use, not washdown.

Frequently asked questions

What is the breaking capacity of C11N44V050B?

The performance level is N, rated at 50 kA at 415 V AC. That is the maximum fault current this MCCB can safely interrupt at that voltage.

Does C11N44V050B include earth-leakage protection?

Yes, earth-leakage protection is integrated into the MicroLogic 4.1 trip unit. Sensitivity is selectable from 30 mA to 5 A for both class A and class AC residual currents.

MPN
C11N44V050B