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Schneider Electric C11F44V050B — Residual Current Breakers (RCCB/RCBO)

C11F44V050B ComPacT NSXm 50A 4P MCCB, 36kA 415V AC

MPNC11F44V050B
Active

Schneider Electric ComPacT NSXm, C11F44V050B, 4P MCCB, 50 A at 40 °C, 36 kA at 415 V AC, MicroLogic 4.1 electronic trip unit, integrated earth-leakage protection.

Schneider Electric C11F44V050B datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C11F44V050B — 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
C11F44V050B — 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
C11F44V050B — Identification
ParameterValue
Product nameComPacT NSXm
Product / component typeEarth leakage circuit breaker
Product range / familyComPacT
Device short nameNSXm 63F
C11F44V050B — Mechanical
ParameterValue
Mounting supportBackplate
Mounting positionHorizontal and vertical Flat on the back
Control typeToggle
Width in 9 mm modules12 module
C11F44V050B — 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
C11F44V050B — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

The C11F44V050B is a Schneider Electric ComPacT NSXm moulded-case circuit breaker, 4-pole (4P), rated 50 A at 40 °C with a MicroLogic 4.1 electronic trip unit. This is a distribution-grade MCCB with integrated earth-leakage protection, selectable from 30 mA up to 5 A for class A or class AC residual currents.

Above 40 °C, the electronic trip unit derates per the thermal curve — the 50 A figure is the baseline, not the ceiling. The MicroLogic 4.1 electronic trip unit provides adjustable thermal-magnetic protection curves plus the integrated earth-leakage function. Overvoltage category IV confirms it is suitable for the main distribution point (utility entrance or main panel), not just downstream branch circuits.

Deployment context

This MCCB mounts to a backplate, not a DIN rail. It occupies 12 module pitches at 9 mm each (108 mm width). The 144 mm height and 80 mm depth fit standard distribution enclosures. Front-facing connections accept compression lugs or busbars; the connection pitch is 35 mm with spreaders, 27 mm without. IP40 protection means it is guarded against tools and small objects but not water ingress — suitable for indoor panel installation. IK07 impact resistance handles typical handling during installation. The grey RAL 7016 colour is standard for Schneider switchgear.

Frequently asked questions

Where can I buy C11F44V050B and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current availability and pricing.

What is the breaking capacity of C11F44V050B?

The breaking capacity is 36 kA at 415 V AC, performance level F, certified to EN/IEC 60947-2.

What earth-leakage sensitivities are available on this breaker?

The integrated earth-leakage protection is selectable: 30 mA, 100 mA, 300 mA, 500 mA, 1 A, 3 A, or 5 A for class A or class AC residual currents.

What compliance documentation does Schneider provide for C11F44V050B?

The breaker is certified to EN/IEC 60947-2. Standard compliance documentation includes the manufacturer's declaration of conformity for CE marking; specific RoHS, REACH, and UL documentation should be requested at quote time as it varies by production batch and destination.

MPN
C11F44V050B