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Schneider Electric C16N4TM125C — Miniature Circuit Breakers (MCB)

Schneider Electric C16N4TM125C ComPacT NSX160N, 125 A, 50 kA

MPNC16N4TM125C
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Schneider Electric ComPacT NSX160N, C16N4TM125C, 4P thermal-magnetic circuit breaker, 125 A TM-D trip unit, 50 kA Icu at 415 V AC, IEC 60947-2.

Schneider Electric C16N4TM125C datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C16N4TM125C — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C16N4TM125C — Ratings
ParameterValue
Rated current (In)125 A at 50 °C
Poles configuration4P
Breaking capacity90 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 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)90 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 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
C16N4TM125C — 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
C16N4TM125C — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C16N4TM125C — 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 %
C16N4TM125C — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C16N4TM125C — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The C16N4TM125C is a Schneider Electric ComPacT NSX160N circuit breaker with a 125 A thermal-magnetic TM-D trip unit, rated for 50 kA Icu at 415 V AC per IEC 60947-2. The 4-pole (4P) configuration with neutral on the left suits three-phase plus neutral distribution, common in commercial and industrial switchboards.

The 140 mm width and 161 mm height fit a standard MCC bucket or distribution section.

Frequently asked questions

Where can I buy C16N4TM125C and how do I get a price?

The C16N4TM125C is sourced and quoted 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 price and lead-time estimate.

What is the breaking capacity of C16N4TM125C at 415 V?

50 kA Icu at 380/415 V AC per IEC 60947-2. That is the N breaking capacity code — enough for most 400 V distribution boards without requiring current-limiting upstream devices.

MPN
C16N4TM125C