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Schneider Electric C25H6TM125 — Miniature Circuit Breakers (MCB)

C25H6TM125 ComPacT NSX 125A 4P Circuit Breaker, 70kA 415V

MPNC25H6TM125
Obsolete

Schneider Electric ComPacT NSX series, C25H6TM125, 4-pole circuit breaker with 125 A thermal-magnetic TM-D trip unit, 70 kA Icu at 415 V AC, backplate mount.

$745.89 – $1,646.46Ref. price · indicative, final on quote
Schneider Electric C25H6TM125 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25H6TM125 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C25H6TM125 — Ratings
ParameterValue
Rated current (In)125 A at 40 °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 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
C25H6TM125 — 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
C25H6TM125 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C25H6TM125 — 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 %
C25H6TM125 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25H6TM125 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The C25H6TM125 is a 4-pole ComPacT NSX circuit breaker from Schneider Electric, part of the NSX250H frame. It carries a 125 A thermal-magnetic TM-D trip unit at 40 °C, providing L (overload) and I (short-circuit) protection per EN/IEC 60947-2.

Breaking capacity across voltages

The NSX250H frame delivers 100 kA Icu at 240 V AC, 70 kA at 415 V, 65 kA at 440 V, 50 kA at 500 V, 35 kA at 525 V, and 10 kA at 690 V — all per IEC 60947-2. Under UL 60947-4-1, it rates 85 kA at 240 V, 65 kA at 480 V, and 15 kA at 600 V AC.

Mounts flat on a backplate in either horizontal or vertical orientation. Front connections on both upside and downside simplify busbar or cable landing in a panel. The 35 mm connection pitch matches standard DIN-rail-compatible busbar systems. IK07 impact resistance handles incidental tool contact during commissioning.

Frequently asked questions

What is C25H6TM125's breaking capacity at 415 V?

70 kA Icu at 380/415 V AC, 50/60 Hz, conforming to IEC 60947-2. This is the H breaking capacity code for the NSX250H frame.

What trip unit does the C25H6TM125 use?

It uses a TM-D thermal-magnetic trip unit rated 125 A at 40 °C. The thermal element provides overload protection (L), and the magnetic element provides short-circuit protection (I). No earth-leakage protection is integrated.

Where can I buy C25H6TM125?

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

What compliance documentation is available for C25H6TM125?

The breaker is certified to EN/IEC 60947-2 and UL 60947-4-1. Pollution degree 3 per IEC 60664-1, overvoltage category III. RoHS/REACH declarations are standard for Schneider Electric ComPacT products and can be requested at quote time.

MPN
C25H6TM125