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Schneider Electric C16H4TM125C — Miniature Circuit Breakers (MCB)

Schneider Electric C16H4TM125C ComPacT NSX 160H, 125 A, 70 k

MPNC16H4TM125C
Active

Schneider Electric ComPacT NSX 160H, 4P, 125 A, thermal-magnetic, 70 kA Icu at 415 V AC, IP40, toggle control.

Schneider Electric C16H4TM125C datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C16H4TM125C — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C16H4TM125C — Ratings
ParameterValue
Rated current (In)125 A at 50 °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
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
C16H4TM125C — 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
C16H4TM125C — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C16H4TM125C — 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 %
C16H4TM125C — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C16H4TM125C — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The C16H4TM125C is a 4-pole ComPacT NSX160H circuit breaker with a TM-D thermal-magnetic trip unit rated 125 A at 50 °C. At 220/240 V AC it interrupts 100 kA; at 690 V AC it still holds 10 kA. Both ratings are per IEC 60947-2, which governs molded-case breakers used in industrial distribution.

Mounts flat on a backplate in horizontal or vertical orientation. The 161 mm height, 140 mm width, and 86 mm depth fit standard enclosure cutouts for the NSX160 frame. Front connections on both upside and downside simplify bus-bar or cable landing. The 35 mm connection pitch matches standard MCCB bus-bar spacing. IP40 enclosure protection means it is suited for clean indoor panels; the IK07 impact rating handles incidental tool strikes during commissioning.

Frequently asked questions

What is the breaking capacity of C16H4TM125C at 415 V?

70 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2. The H breaking-capacity code is the 70 kA variant at 415 V, which covers most 400 V industrial distribution panels.

What standards does C16H4TM125C comply with?

It complies with EN/IEC 60947-2 for molded-case circuit breakers, IEC 60664-1 for pollution degree 3, and IEC 62262 for IK07 impact protection. It is suitable for isolation per EN/IEC 60947-2.

MPN
C16H4TM125C