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Schneider Electric C25F42D250 — Miniature Circuit Breakers (MCB)

Schneider Electric C25F42D250 ComPacT NSX250F, 250A, 85kA

MPNC25F42D250
Active

Schneider Electric ComPacT NSX, NSX250F, circuit breaker, 250 A at 40 °C, 85 kA Icu at 240 V AC, 4P, MicroLogic 2.2 electronic trip unit, toggle control.

$649.87Ref. price · indicative, final on quote
Schneider Electric C25F42D250 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

C25F42D250 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C25F42D250 — Ratings
ParameterValue
Rated current (In)250 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 15 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
C25F42D250 — Protection
ParameterValue
Trip unit technologyElectronic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)20000 cycles at 440 V In/2 10000 cycles at 440 V In 10000 cycles at 690 V In/2 5000 cycles at 690 V In
Mechanical durability (cycles)20000 cycles
C25F42D250 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
Local signalling/indicationFlashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload
C25F42D250 — 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 %
C25F42D250 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25F42D250 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range100...250 A
Trip unit protection functionsLSoI

Product details

The C25F42D250 is a Schneider Electric ComPacT NSX250F circuit breaker rated 250 A at 40 °C with a MicroLogic 2.2 electronic trip unit. The 85 kA Icu at 240 V AC is the maximum fault current it can safely interrupt once; at 415 V AC the breaking capacity is 36 kA Icu, which covers most industrial distribution panels fed from a typical 400 V transformer.

Mounts on a backplate in either horizontal or vertical orientation — flat on the back, no DIN rail. The 161 mm height, 140 mm width, and 86 mm depth (35 mm connection pitch) fit standard distribution panel cutouts for the NSX frame. Front connections top and bottom simplify busbar and cable routing. IP40 enclosure protection and IK07 impact resistance suit indoor panel environments, not washdown zones.

Durability and thermal memory

Rated for 20,000 mechanical cycles and 20,000 electrical cycles at 440 V at half rated current (In/2), or 10,000 cycles at full rated current. That matters for motor feeders or pulsed loads where repeated inrush could otherwise nuisance-trip on the second event.

Frequently asked questions

What are the key ratings for C25F42D250?

250 A continuous at 40 °C, 85 kA Icu at 240 V AC, 36 kA Icu at 415 V AC, 4 poles, MicroLogic 2.2 electronic trip with L/So/I protection curves.

Where can I buy C25F42D250?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

What standards does C25F42D250 comply with?

Certified to EN/IEC 60947-2, with breaking capacity ratings also tested to UL 60947-4-1. Pollution degree 3 per IEC 60664-1, overvoltage category III.

MPN
C25F42D250