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Schneider Electric C25H3TM125 — Miniature Circuit Breakers (MCB)

Schneider Electric C25H3TM125 ComPacT NSX Circuit Breaker, 1

MPNC25H3TM125
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Schneider Electric ComPacT NSX circuit breaker, C25H3TM125, 3P, 125 A TM-D trip unit, 70 kA Icu at 415 V AC.

$528.54 – $1,384.02Ref. price · indicative, final on quote
Schneider Electric C25H3TM125 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25H3TM125 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C25H3TM125 — Ratings
ParameterValue
Rated current (In)125 A at 40 °C
Poles configuration3P
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 85 kA Icu at 240 V AC 50/60 Hz conforming to UL 60947-4-1 65 kA Icu at 480 V AC 50/60 Hz conforming to UL 60947-4-1 15 kA Icu at 600 V AC 50/60 Hz conforming to UL 60947-4-1
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
C25H3TM125 — 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
C25H3TM125 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C25H3TM125 — 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 %
C25H3TM125 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25H3TM125 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

It carries a 125 A thermal-magnetic TM-D trip unit, rated at 40 °C ambient, protecting against overload (L) and short-circuit (I) per EN/IEC 60947-2. Its headline breaking capacity is 70 kA Icu at 380/415 V AC 50/60 Hz, 65 kA at 440 V, and 50 kA at 500 V. At 480 V AC it carries a 65 kA Icu rating per UL 60947-4-1. This makes it suitable for high-fault distribution panels where fault currents exceed standard 25–36 kA breaker limits.

The TM-D trip unit is fixed thermal-magnetic — no interchangeable electronic trip modules — so the overload and short-circuit thresholds are factory-set and not field-adjustable. In a distribution panel this gives selectivity headroom downstream; a 25 kA branch breaker will coordinate without exceeding the upstream device's withstand. Mechanical durability is 20,000 cycles; electrical durability at rated current (440 V In) is 10,000 cycles.

Deployment context

The 105 mm width and 161 mm height fit standard distribution panel cutouts. IP40 front face protection suits indoor panel installation; the IK07 impact rating withstands incidental tool strikes during commissioning.

Frequently asked questions

What is the breaking capacity of C25H3TM125 at 415 V?

The C25H3TM125 has a breaking capacity of 70 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2.

Where can I buy C25H3TM125 and how is it quoted?

The C25H3TM125 is sourced and quoted to order against an RFQ through independent distribution; availability and pricing are confirmed at quote time.

What standards does the C25H3TM125 comply with?

It complies with EN/IEC 60947-2 and carries UL 60947-4-1 ratings for North American installations.

MPN
C25H3TM125