Skip to main content
Log in
Schneider Electric C25F4TM125D3 — Miniature Circuit Breakers (MCB)

Schneider Electric C25F4TM125D3 ComPacT NSX DC EP, 125 A, 20

MPNC25F4TM125D3
Active

Schneider Electric ComPacT NSX DC EP, fixed-mount DC circuit breaker, 4 poles, TM-DC 125 A thermal-magnetic trip unit, 20 kA Icu at 1500 V DC (4 poles in series) per IEC 60947-2.

$1,729.31Ref. price · indicative, final on quote
Schneider Electric C25F4TM125D3 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25F4TM125D3 — Identification
ParameterValue
Product nameComPacT NSX DC EP
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationSpecial application
C25F4TM125D3 — Ratings
ParameterValue
Rated current (In)125 A at 40 °C
Poles configuration4P
Breaking capacity20 kA Icu at 1500 V DC 4 poles in series conforming to IEC 60947-2 50 kA Icu at 1100 V DC 4 poles in series conforming to IEC 60947-2
Rated service breaking capacity (Ics)20 kA at 1500 V DC conforming to IEC 60947-2 20 kA at 1100 V DC conforming to IEC 60947-2
Rated operational voltage (Ue)1500 V DC
Rated insulation voltage (Ui)1600 V DC conforming to IEC 60947-2
Rated impulse withstand voltage (Uimp)8 kV conforming to IEC 60947-2
Network type (AC/DC)DC
Utilisation categoryCategory A
C25F4TM125D3 — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)4500 cycles at 1500 V In
Mechanical durability (cycles)10000 cycles
C25F4TM125D3 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C25F4TM125D3 — 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 %
C25F4TM125D3 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25F4TM125D3 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

It carries a TM-DC thermal-magnetic trip unit providing LI protection — L for overload (thermal) and I for short-circuit (magnetic). The breaking capacity is 20 kA Icu at 1500 V DC with 4 poles in series, and 50 kA Icu at 1100 V DC with 4 poles in series, both conforming to EN/IEC 60947-2. It is also certified for isolation per the same standard.

This breaker is designed specifically for DC circuits — the network type is DC, and the rated operational voltage is 1500 V DC. At 1100 V DC the same pole configuration delivers 50 kA Icu.

Fixed backplate mount, accepts horizontal or vertical orientation. IP40 enclosure protection (IK07 impact resistance) suits clean indoor panel environments — not rated for washdown.

Frequently asked questions

What are the key ratings of C25F4TM125D3?

Rated 125 A at 40 °C with a TM-DC thermal-magnetic trip unit (LI protection). Breaking capacity: 20 kA Icu at 1500 V DC (4 poles in series) and 50 kA Icu at 1100 V DC (4 poles in series). Rated operational voltage 1500 V DC. Complies with EN/IEC 60947-2.

MPN
C25F4TM125D3