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Schneider Electric C16F4TM125 — Miniature Circuit Breakers (MCB)

Schneider Electric C16F4TM125 ComPacT NSX160F, 125 A, 4P, TM

MPNC16F4TM125
Active

Schneider Electric ComPacT NSX, NSX160F, circuit breaker, 125 A, 4P, TM-D trip unit, 36 kA Icu at 415 V AC, EN/IEC 60947-2.

$296.98Ref. price · indicative, final on quote
Schneider Electric C16F4TM125 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C16F4TM125 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C16F4TM125 — Ratings
ParameterValue
Rated current (In)125 A at 40 °C
Poles configuration4P
Breaking capacity85 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 35 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 30 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 22 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 8 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 85 kA Icu at 240 V AC 50/60 Hz conforming to UL 60947-4-1 35 kA Icu at 480 V AC 50/60 Hz conforming to UL 60947-4-1 10 kA Icu at 600 V AC 50/60 Hz conforming to UL 60947-4-1
Rated service breaking capacity (Ics)85 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 36 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 35 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 30 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 22 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 8 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
C16F4TM125 — 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
C16F4TM125 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C16F4TM125 — 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 %
C16F4TM125 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C16F4TM125 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The C16F4TM125 is a 4-pole ComPacT NSX160F frame circuit breaker with a TM-D thermal-magnetic trip unit rated 125 A at 40 °C. At 240 V AC it jumps to 85 kA Icu, so it handles high-fault points like a service entrance or a transformer secondary without cascading upstream. The TM-D trip gives you fixed thermal (overload) and fixed magnetic (short-circuit) protection curves; no adjustment dials, which simplifies spec-in for a BOM line where you want repeatable performance across multiple panels.

The 35 mm connection pitch matches standard busbar and cable-lug spacing for panel wiring. Front-facing terminals on both line and load sides simplify busbar runs and allow daisy-chaining without reaching behind the breaker. Horizontal or vertical orientation is acceptable, which helps when fitting into a legacy enclosure that was laid out for a different frame.

Frequently asked questions

What is C16F4TM125's breaking capacity at 415 V?

The C16F4TM125 delivers 36 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2, which is the 'F' breaking capacity code for the NSX160F frame.

What trip unit does the C16F4TM125 use?

It uses a TM-D thermal-magnetic trip unit rated 125 A at 40 °C, providing fixed L (overload) and I (short-circuit) protection without adjustment.

Where can I buy C16F4TM125?

The C16F4TM125 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What compliance documentation is available for C16F4TM125?

The C16F4TM125 is certified to EN/IEC 60947-2, suitable for isolation per that standard, and carries an IP40 protection degree per IEC 60529. Specific RoHS/REACH declarations are available from the manufacturer upon request.

MPN
C16F4TM125