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Schneider Electric C11B44V050L — Residual Current Breakers (RCCB/RCBO)

Schneider Electric C11B44V050L ComPacT NSXm MCCB, 50 A, 25 k

MPNC11B44V050L
Active

Schneider Electric ComPacT NSXm, C11B44V050L, 4P MCCB, 50 A at 40 °C, 25 kA at 415 V AC, electronic MicroLogic 4.1 trip unit, integrated earth-leakage protection.

$696.06Ref. price · indicative, final on quote
Schneider Electric C11B44V050L datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C11B44V050L — 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
C11B44V050L — 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
C11B44V050L — Identification
ParameterValue
Product nameComPacT NSXm
Product / component typeEarth leakage circuit breaker
Product range / familyComPacT
Device short nameNSXm 63B
C11B44V050L — Mechanical
ParameterValue
Mounting supportBackplate
Mounting positionHorizontal and vertical Flat on the back
Control typeToggle
Width in 9 mm modules12 module
C11B44V050L — 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
C11B44V050L — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

The 4-pole configuration with neutral on the left is standard for three-phase plus neutral distribution panels. The integrated earth-leakage covers both class A (pulsating DC) and class AC (sinusoidal) faults, selectable from 30 mA up to 5 A — that range lets you set a 30 mA threshold for personnel protection or a higher threshold for feeder circuits with leakage from filters and drives.

Panel integration

The front-facing Everlink terminals accept 2.5–95 mm² rigid or stranded aluminium/copper on the line side and 2.5–70 mm² fine-stranded copper on the load side. The 108 mm width takes 12 module pitches at 9 mm each; depth is 80 mm, height 144 mm. IK07 impact rating handles accidental tool drops during panel work.

Frequently asked questions

What is C11B44V050L used for?

It's a 4-pole moulded-case circuit breaker for distribution panels, rated 50 A with a 25 kA breaking capacity at 415 V AC, and includes integrated earth-leakage protection for personnel or equipment ground-fault coverage.

Where can I buy C11B44V050L?

This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

MPN
C11B44V050L