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Schneider Electric C25N6TM250 — Miniature Circuit Breakers (MCB)

C25N6TM250 ComPacT NSX 250A 4P Thermal-Magnetic MCCB, 50 kA

MPNC25N6TM250
Active

Schneider Electric, ComPacT NSX, Molded case circuit breaker, NSX250N, 250 A, 4P, TM-D trip unit, 50 kA Icu at 415 V AC.

$847.53 – $1,928.88Ref. price · indicative, final on quote
Schneider Electric C25N6TM250 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25N6TM250 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C25N6TM250 — Ratings
ParameterValue
Rated current (In)250 A at 40 °C
Poles configuration4P
Breaking capacity90 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 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 85 kA Icu at 240 V AC 50/60 Hz conforming to UL 60947-4-1 50 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)90 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 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
C25N6TM250 — Protection
ParameterValue
Trip unit technologyThermal-magnetic
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
C25N6TM250 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C25N6TM250 — 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 %
C25N6TM250 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25N6TM250 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

For a 480 V AC system (common in North America), it still holds 50 kA Icu per UL 60947-4-1. At 690 V AC, the Icu drops to 10 kA, so it is not a fit for 690 V main feeders unless the fault current is known to be low.

The 35 mm connection pitch and 140 mm width mean it occupies the same footprint as other NSX frames, so a panel layout designed for an NSX160 or NSX250 can accept this breaker without re-drilling. Rated IP40 (finger-safe) and IK07 (2 J impact), it is suited for enclosed distribution boards.

Endurance and isolation

Rated for 20,000 mechanical cycles and 20,000 electrical cycles at 440 V In/2. At full rated current (250 A, 440 V), electrical endurance is 10,000 cycles — enough for frequent switching in a distribution role but not for daily motor starting. Overvoltage category III suits fixed-installation distribution.

Frequently asked questions

What is C25N6TM250's breaking capacity at 415 V AC?

The C25N6TM250 has a breaking capacity of 50 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2.

What trip unit does the C25N6TM250 use?

It uses a TM-D thermal-magnetic trip unit with fixed settings: L (thermal overload) and I (magnetic short-circuit) protection, rated 250 A at 40 °C.

Where can I buy C25N6TM250 and how is it quoted?

The C25N6TM250 is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time.

MPN
C25N6TM250