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Schneider Electric C10B4TM040 — Miniature Circuit Breakers (MCB)

Schneider Electric C10B4TM040 ComPacT NSX100B, 40 A, 25 kA a

MPNC10B4TM040
Active

Schneider Electric ComPacT NSX, NSX100B, circuit breaker, 4P, 40 A thermal-magnetic TM-D trip, 25 kA Icu at 415 V AC, EN/IEC 60947-2.

$530.28Ref. price · indicative, final on quote
Schneider Electric C10B4TM040 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C10B4TM040 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C10B4TM040 — Ratings
ParameterValue
Rated current (In)40 A at 40 °C
Poles configuration4P
Breaking capacity40 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 15 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2
Rated service breaking capacity (Ics)40 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 7 kA at 500 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
C10B4TM040 — 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
C10B4TM040 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C10B4TM040 — 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 %
C10B4TM040 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C10B4TM040 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The C10B4TM040: Rated 40 kA Icu at 240 V AC, 25 kA at 415 V AC, 20 kA at 440 V AC, and 15 kA at 500 V AC.

Front connections top and bottom. Width 140 mm, height 161 mm, depth 86 mm — fits standard 35 mm pitch busbar systems. IP40 enclosure protection; IK07 impact resistance.

The breaker carries EN/IEC 60947-2 certification and is suitable for isolation (disconnecting means) per that standard. Overvoltage category III. No earth-leakage protection built in; external RCD required if needed. Neutral protection set at 1 x Ir (4D).

Frequently asked questions

What is C10B4TM040's listed range (ComPacT) on this component line?

It belongs to the ComPacT NSX range, specifically the NSX100B frame size.

What is C10B4TM040's listed depth (d) (86 mm) on this component line?

The depth is 86 mm, which fits standard 35 mm pitch busbar systems and typical backplate-mounted distribution panels.

MPN
C10B4TM040