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Schneider Electric C16N3TM125C — Miniature Circuit Breakers (MCB)

Schneider C16N3TM125C ComPacT NSX160N Circuit Breaker, 125 A

MPNC16N3TM125C
Active

Schneider Electric ComPacT NSX series, NSX160N frame, 3-pole circuit breaker, 125 A thermal-magnetic TM-D trip unit, 90 kA Icu at 240 V AC, IEC 60947-2.

Schneider Electric C16N3TM125C datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C16N3TM125C — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C16N3TM125C — Ratings
ParameterValue
Rated current (In)125 A at 50 °C
Poles configuration3P
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
C16N3TM125C — 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
C16N3TM125C — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C16N3TM125C — 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 %
C16N3TM125C — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C16N3TM125C — 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 that provides L (overload, thermal) and I (short-circuit, magnetic) protection across three protected poles (3D). The NSX160N frame gives it a 90 kA Icu breaking capacity at 220/240 V AC, 50 kA at 380/415 V, and 35 kA at 525 V — numbers that matter for fault-clearing coordination downstream of a transformer or upstream of a distribution panel.

The N breaking capacity code (50 kA at 415 V AC) is the middle tier in the NSX range — above the F (25 kA) and below the S (70 kA) and H (100 kA) frames.

Mounts flat on a backplate (DIN-rail adapter available separately), in horizontal or vertical orientation. IP40 front face keeps tools and fingers out; IK07 impact resistance handles panel-door knocks.

Durability and thermal budget

Rated for 40,000 mechanical cycles and 40,000 electrical cycles at 440 V In (20,000 at full load, 40,000 at half load). The TM-D trip unit is field-replaceable but the thermal-magnetic element is fixed-caliber at 125 A; no interchangeable rating plugs on this variant.

Frequently asked questions

What is the breaking capacity of C16N3TM125C at 415 V?

50 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2. This is the N breaking capacity code — the mid-range option in the NSX160 frame family.

What standards does C16N3TM125C comply with?

EN/IEC 60947-2 for low-voltage switchgear and controlgear. It is also suitable for isolation per that standard, and carries pollution degree 3 and overvoltage category III ratings.

Where can I buy C16N3TM125C and get current pricing?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the physical size of C16N3TM125C?

161 mm high × 105 mm wide × 86 mm deep. It mounts flat on a backplate in horizontal or vertical orientation with front-connect terminals.

MPN
C16N3TM125C