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Schneider Electric C16B3TM125C — Miniature Circuit Breakers (MCB)

Schneider C16B3TM125C ComPacT NSX160B MCCB, 125A, 25kA 415V

MPNC16B3TM125C
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Schneider Electric ComPacT NSX160B, C16B3TM125C, 3-pole MCCB, 125 A thermal-magnetic (TM-D) trip, 25 kA at 415 V AC, EN/IEC 60947-2.

Schneider Electric C16B3TM125C datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C16B3TM125C — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C16B3TM125C — Ratings
ParameterValue
Rated current (In)125 A at 50 °C
Poles configuration3P
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 15 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
C16B3TM125C — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)40000 cycles at 440 V In/2 20000 cycles at 440 V In 15000 cycles at 690 V In/2 7500 cycles at 690 V In
Mechanical durability (cycles)40000 cycles
C16B3TM125C — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C16B3TM125C — 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 %
C16B3TM125C — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C16B3TM125C — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The C16B3TM125C is a Schneider Electric ComPacT NSX160B moulded-case circuit breaker (MCCB) with a 125 A thermal-magnetic TM-D trip unit, 3-pole, rated for distribution duty per EN/IEC 60947-2. The breaking capacity of 25 kA Icu at 380/415 V AC means it can safely interrupt a fault current up to that level at typical European 400 V line voltage; the 40 kA Icu at 220/240 V AC covers lower-voltage North American distribution.

Front connections top and bottom simplify bus-bar or cable landing.

Frequently asked questions

How do I get current pricing and availability for C16B3TM125C?

Submit an RFQ through this listing. Pricing and stock are confirmed at quote time; the part is sourced to order through independent distribution.

What is the closest pin-compatible alternative to C16B3TM125C in this component family?

Within the ComPacT NSX160B frame, the C16B3TM125C is the 125 A TM-D variant. A higher or lower trip rating (e.g., 100 A or 160 A) in the same NSX160B frame shares the same footprint and breaking capacity, but the trip unit rating differs — verify the load current before substituting.

What compliance documentation does this brand provide for C16B3TM125C?

The breaker is certified to EN/IEC 60947-2 and is suitable for isolation per that standard. Standard Schneider documentation includes a declaration of conformity covering the IEC standard; RoHS and REACH compliance are typically declared on the product certificate available through Schneider's documentation portal.

MPN
C16B3TM125C