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Schneider Electric C11N3TM050B — Miniature Circuit Breakers (MCB)

C11N3TM050B ComPacT NSXm 50A 3P MCCB, 50 kA 415V AC

MPNC11N3TM050B
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Schneider Electric ComPacT NSXm, 50 A, 3P, TM-D trip unit, 50 kA at 415 V AC, IP40, grey (RAL 7016).

Schneider Electric C11N3TM050B datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C11N3TM050B — Identification
ParameterValue
Product nameComPacT NSXm
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C11N3TM050B — Ratings
ParameterValue
Rated current (In)50 A at 40 °C
Poles configuration3P
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
C11N3TM050B — 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
C11N3TM050B — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
Local signalling/indicationFlag (green) for presence of auxiliary contacts
Number of 9 mm pitches9 module
C11N3TM050B — 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 %
C11N3TM050B — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C11N3TM050B — Electrical
ParameterValue
[Icu] rated ultimate short-circuit breaking capacity90 kA Icu at 220...240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380...415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 25 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 15 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA Icu at 660...690 V AC 50/60 Hz conforming to IEC 60947-2
[Ics] rated service short-circuit breaking capacity90 kA at 220...240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380...415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 25 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 15 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 2.5 kA at 660...690 V AC 50/60 Hz conforming to IEC 60947-2
C11N3TM050B — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

Connection is front-facing via compression lugs or busbars; the connection pitch is 35 mm with spreaders, 27 mm without. The IP40 enclosure and IK07 impact resistance suit panel-mount indoor use where occasional tool contact is expected.

Electrical durability and environmental limits

Rated for 20 000 mechanical cycles and 20 000 electrical cycles at 440 V In/2, 10 000 at 440 V In, 10 000 at 690 V In/2, and 5 000 at 690 V In. Power dissipation is 4.6 W per pole. Pollution degree 3 (IEC 60664-1) and overvoltage category III. No earth-leakage protection built in — specify an external RCD if needed.

Frequently asked questions

What is the breaking capacity of C11N3TM050B?

It is rated N 50 kA at 415 V AC, meaning it can safely interrupt a fault current up to 50 000 A at that voltage.

What is the closest alternative to C11N3TM050B?

Within the same ComPacT NSXm family, the closest sibling is the 63 A frame version (NSXm 63N) with a different trip unit rating. The physical footprint and breaking capacity are identical; only the continuous current rating changes.

What compliance documentation does Schneider provide for C11N3TM050B?

The breaker is certified to EN/IEC 60947-2 and carries IP40 (IEC 60529) and IK07 (IEC 62262) ratings. It is suitable for isolation per IEC 60947-2. RoHS and REACH declarations are standard from Schneider for this series.

Where can I buy C11N3TM050B and how is it quoted?

It is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are published here.

MPN
C11N3TM050B