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Schneider Electric C25H4TM125C — Miniature Circuit Breakers (MCB)

Schneider C25H4TM125C ComPacT NSX MCCB, 125A, 70kA 415V

MPNC25H4TM125C
Obsolete

Schneider Electric ComPacT NSX250H, 4P, 125 A, thermal-magnetic TM-D trip, 70 kA Icu at 415 V AC, toggle control, backplate mount.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25H4TM125C — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C25H4TM125C — Ratings
ParameterValue
Rated current (In)125 A at 50 °C
Poles configuration4P
Breaking capacity100 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 70 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 65 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 50 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
Rated service breaking capacity (Ics)100 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 70 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 65 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 50 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
C25H4TM125C — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/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
C25H4TM125C — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C25H4TM125C — 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 %
C25H4TM125C — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25H4TM125C — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

At 220/240 V AC it handles 100 kA Icu, and at 690 V AC it still holds 10 kA Icu, so the same breaker can serve a mixed-voltage installation as long as the lowest interrupting rating at the applied voltage exceeds the available fault current. The 4-pole configuration with neutral left and 1 x Ir neutral protection setting means it switches and protects all four poles, suited for three-phase plus neutral distribution. The TM-D trip provides L (thermal overload) and I (magnetic short-circuit) protection curves — the thermal element handles sustained overloads, the magnetic element clears high-current faults instantly.

Mounts on a backplate in horizontal or vertical orientation — flat against the panel, not DIN-rail. Front connections top and bottom, 35 mm connection pitch, 4-pole width of 140 mm, depth 86 mm, height 161 mm. IP40 front face, IK07 impact resistance. Five accessory slots available for shunt trips, auxiliary contacts, or motor operators.

Frequently asked questions

What breaking capacity does C25H4TM125C deliver at 415 V?

70 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2, which is the H breaking capacity code.

What standards does this MCCB comply with?

EN/IEC 60947-2 for circuit-breaker performance, IEC 60664-1 for pollution degree 3, and IEC 62262 for IK07 impact rating. It is certified suitable for isolation per EN/IEC 60947-2.

Where can I buy C25H4TM125C and how is it quoted?

This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment.

MPN
C25H4TM125C