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Schneider Electric C11B4TM063B — Miniature Circuit Breakers (MCB)

Schneider Electric C11B4TM063B ComPacT NSXm 63A 4P 25kA MCCB

MPNC11B4TM063B
Active

Schneider Electric ComPacT NSXm, C11B4TM063B, 4-pole MCCB, 63 A, 25 kA at 415 V AC, thermal-magnetic TM-D trip unit, grey (RAL 7016).

Schneider Electric C11B4TM063B datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C11B4TM063B — Identification
ParameterValue
Product nameComPacT NSXm
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C11B4TM063B — Ratings
ParameterValue
Rated current (In)63 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
C11B4TM063B — 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
C11B4TM063B — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
Local signalling/indicationFlag (green) for presence of auxiliary contacts
Number of 9 mm pitches12 module
C11B4TM063B — 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 %
C11B4TM063B — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C11B4TM063B — 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
C11B4TM063B — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

MCCB for distribution panels — 63 A, 4-pole, 25 kA

The Schneider Electric C11B4TM063B is a ComPacT NSXm moulded-case circuit breaker rated 63 A at 40 °C, 4-pole, with a 25 kA interrupting capacity at 415 V AC — performance level B per IEC 60947-2. Front-connect terminals accept compression lugs or busbars; the 108 mm wide body occupies 12 module pitches on a backplate mount.

Category A utilisation means it is not intended for cascading (series) connection with downstream breakers for selectivity — coordination studies should treat it as a standalone device.

Frequently asked questions

What is the breaking capacity of C11B4TM063B?

The interrupting rating is 25 kA at 415 V AC, performance level B per IEC 60947-2.

What trip unit does C11B4TM063B use?

It uses a thermal-magnetic TM-D trip unit rated 63 A at 40 °C, providing overload and short-circuit protection in a single device.

What compliance documentation does Schneider provide for C11B4TM063B?

The MCCB is designed and tested to EN/IEC 60947-2. Schneider typically provides a declaration of conformity covering the applicable directives; specific RoHS, REACH, and UL documentation should be requested at quote time to match your jurisdiction's requirements.

MPN
C11B4TM063B