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Schneider Electric C11B4TM050L — Miniature Circuit Breakers (MCB)

Schneider C11B4TM050L ComPacT NSXm 63B, 50A 4P Thermal-Magne

MPNC11B4TM050L
Active

Schneider Electric ComPacT NSXm 63B, C11B4TM050L, 4P 50 A thermal-magnetic MCCB, 25 kA at 415 V AC, grey (RAL 7016).

$312.95Ref. price · indicative, final on quote
Schneider Electric C11B4TM050L datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C11B4TM050L — Identification
ParameterValue
Product nameComPacT NSXm
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C11B4TM050L — Ratings
ParameterValue
Rated current (In)50 A at 40 °C
Poles configuration4P
Rated operational voltage (Ue)690 V AC 50/60 Hz
Rated insulation voltage (Ui)800 V AC 50/60 Hz
Rated impulse withstand voltage (Uimp)8 kV
Network type (AC/DC)AC
Network frequency50/60 Hz
Utilisation categoryCategory A
Overvoltage categoryIII
C11B4TM050L — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to IEC 60947-2
Electrical durability (cycles)20000 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 (cycles)20000 cycles
C11B4TM050L — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
Local signalling/indicationFlag (green) for presence of auxiliary contacts
Number of 9 mm pitches12 module
C11B4TM050L — 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 %
C11B4TM050L — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C11B4TM050L — Electrical
ParameterValue
[Icu] rated ultimate short-circuit breaking capacity50 kA Icu at 220...240 V AC 50/60 Hz conforming to IEC 60947-2 25 kA Icu at 380...415 V AC 50/60 Hz conforming to IEC 60947-2 20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 10 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2
[Ics] rated service short-circuit breaking capacity50 kA at 220...240 V AC 50/60 Hz conforming to IEC 60947-2 25 kA at 380...415 V AC 50/60 Hz conforming to IEC 60947-2 20 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 10 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2
C11B4TM050L — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

Integrator's note — ComPacT NSXm 63B, 50 A, 4P

Schneider Electric C11B4TM050L is a ComPacT NSXm 63B moulded-case circuit breaker (MCCB) rated 50 A at 40 °C, 4-pole, with a TM-D thermal-magnetic trip unit. This is the distribution-grade variant, not the motor-protection version — category A utilisation, no earth-leakage module.

What the 25 kA rating means in the panel

For a 50 A feeder, that gives substantial SCCR headroom in a 25 kA RMS symmetrical fault scenario. In a typical distribution panel downstream of a larger MCCB or fused switch, this coordinates cleanly for selective tripping on high faults.

Current lifecycle stage per Schneider. Active catalog number in the ComPacT NSXm family.

Termination and panel integration

Front-connected top and bottom via Everlink lugs. Accepts 2.5 to 95 mm² rigid or stranded aluminium/copper, or 2.5 to 70 mm² flexible copper. Connection pitch 35 mm with spreaders, 27 mm without.

Suitable for isolation. Operating altitude 2000 m without derating, up to 5000 m with derating.

Frequently asked questions

What terminals does C11B4TM050L use?

Everlink lugs front-connected top and bottom. Accepts 2.5 to 95 mm² rigid or stranded aluminium/copper, or 2.5 to 70 mm² flexible copper. Connection pitch 35 mm with spreaders, 27 mm without.

MPN
C11B4TM050L