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Schneider Electric C25R3TM125 — Miniature Circuit Breakers (MCB)

Schneider Electric C25R3TM125 ComPacT NSX Circuit Breaker, 1

MPNC25R3TM125
Active

Schneider Electric ComPacT NSX, circuit breaker, 3P, 125 A, TM-D trip unit, 200 kA Icu at 415 V AC, EN/IEC 60947-2.

Schneider Electric C25R3TM125 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25R3TM125 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C25R3TM125 — Ratings
ParameterValue
Rated current (In)125 A at 40 °C
Poles configuration3P
Breaking capacity200 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 200 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 200 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 80 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 65 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 45 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Rated service breaking capacity (Ics)200 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 200 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 200 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 80 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 65 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 45 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
C25R3TM125 — 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
C25R3TM125 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C25R3TM125 — 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 %
C25R3TM125 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25R3TM125 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The C25R3TM125 is a 3-pole ComPacT NSX circuit breaker with a TM-D thermal-magnetic trip unit rated 125 A at 40 °C. The magnetic element handles short-circuit protection, and the breaker's breaking capacity hits 200 kA Icu at 415 V AC, which means it can safely interrupt a fault current up to 200,000 A at that voltage without welding contacts or rupturing the case. For a distribution board feeding a high-fault plant floor, this is the class where you stop worrying about upstream coordination.

The 105 mm width and 161 mm height fit standard ComPacT cutouts, and the 86 mm depth leaves room for front-facing cable connections on both line and load sides. The toggle control gives a clear visual break position for lockout-tagout.

Frequently asked questions

Where can I buy C25R3TM125 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request with your quantity and delivery needs; availability and current pricing are confirmed at quote time.

What is C25R3TM125's breaking capacity at 415 V AC?

200 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2 — that's the maximum fault current it can safely interrupt at that voltage level.

What compliance documentation does Schneider provide for C25R3TM125?

The breaker is certified to EN/IEC 60947-2, carries an IK07 impact rating per IEC 62262, and IP40 per IEC 60529. Pollution degree 3 per IEC 60664-1. Specific RoHS/REACH declarations are available on request.

MPN
C25R3TM125