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Schneider Electric C10N3TM040 — Miniature Circuit Breakers (MCB)

Schneider Electric C10N3TM040 ComPacT NSX Circuit Breaker, 4

MPNC10N3TM040
Active

Schneider Electric ComPacT NSX circuit breaker, C10N3TM040, NSX100N frame, 40 A thermal-magnetic TM-D trip unit, 3-pole, 50 kA Icu at 415 V AC, IEC 60947-2.

$160.91 – $479.30Ref. price · indicative, final on quote
Schneider Electric C10N3TM040 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C10N3TM040 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C10N3TM040 — Ratings
ParameterValue
Rated current (In)40 A at 40 °C
Poles configuration3P
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 36 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 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 85 kA Icu at 240 V AC 50/60 Hz conforming to UL 60947-4-1 50 kA Icu at 480 V AC 50/60 Hz conforming to UL 60947-4-1 10 kA Icu at 600 V AC 50/60 Hz conforming to UL 60947-4-1
Rated service breaking capacity (Ics)90 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 36 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
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
C10N3TM040 — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)50000 cycles at 440 V In/2 30000 cycles at 440 V In 20000 cycles at 690 V In/2 10000 cycles at 690 V In
Mechanical durability (cycles)50000 cycles
C10N3TM040 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C10N3TM040 — 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 %
C10N3TM040 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C10N3TM040 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The Schneider Electric C10N3TM040 is a ComPacT NSX100N molded-case circuit breaker with a 40 A thermal-magnetic TM-D trip unit, 3 poles protected (3P), and a toggle control. It's built for distribution applications and carries a 50 kA Icu breaking capacity at 415 V AC 50/60 Hz per IEC 60947-2 — enough to handle fault currents in most commercial and light industrial panelboards without cascading upstream.

The 40 A trip unit rating is at 40 °C ambient — typical for a panel interior. The thermal-magnetic TM-D gives L (overload) and I (short-circuit) protection, with magnetic pickup fixed by the trip curve. Breaking capacity steps down as voltage rises: 50 kA at 415 V, 36 kA at 500 V, 10 kA at 690 V AC. For a 480 V panel, the UL listing shows 50 kA Icu — that's the number to coordinate with downstream breakers.

Front connections top and bottom. IP40 finger protection, IK07 impact rating.

Frequently asked questions

What is C10N3TM040's breaking capacity at 415 V?

The C10N3TM040 has a breaking capacity of 50 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2.

Where can I buy C10N3TM040?

The C10N3TM040 is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time.

MPN
C10N3TM040