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Schneider Electric C25W42D250 — Miniature Circuit Breakers (MCB)

C25W42D250 ComPacT NSX 250A 4P MCCB, 100kA at 690V

MPNC25W42D250
Obsolete

Schneider Electric ComPacT NSX series, C25W42D250, 4-pole MCCB, 250 A at 40 °C, 100 kA Icu at 690 V AC, MicroLogic 2.2 electronic trip unit.

$1,004.43Ref. price · indicative, final on quote
Schneider Electric C25W42D250 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25W42D250 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C25W42D250 — Ratings
ParameterValue
Rated current (In)250 A at 40 °C
Poles configuration4P
Breaking capacity100 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 100 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 100 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Rated service breaking capacity (Ics)100 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 100 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 100 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
C25W42D250 — 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
C25W42D250 — 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
C25W42D250 — 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 %
C25W42D250 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25W42D250 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range100...250 A
Trip unit protection functionsLSoI

Product details

The C25W42D250 is a Schneider ComPacT NSX250HB2 4-pole MCCB with a MicroLogic 2.2 electronic trip unit, rated 250 A at 40 °C. The 4P configuration with neutral on the left handles three-phase plus neutral distribution; the toggle control and front-front connections suit panel layouts where access and wiring are from the front face.

Trip unit and protection logic

The electronic trip unit holds a 20-minute thermal memory before and after tripping — so if a motor load cycles near the threshold, the breaker remembers the thermal history and won't reset too early. That matters for pump or conveyor starts where repeated overloads can accumulate heat in the cable.

The 86 mm depth and 140 mm width fit standard distribution panel cutouts.

Frequently asked questions

What is the breaking capacity of C25W42D250?

100 kA Icu at 500 V, 525 V, and 660/690 V AC 50/60 Hz per IEC 60947-2. The breaking capacity code is HB2, meaning 100 kA at 690 V AC.

What trip unit does C25W42D250 use?

MicroLogic 2.2 electronic trip unit with L (long-time overload), So (short-time short-circuit with fixed delay), and I (instantaneous short-circuit) protection. It includes a 20-minute thermal memory.

Where can I buy C25W42D250 and how is it quoted?

The C25W42D250 is sourced 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.

MPN
C25W42D250