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Schneider Electric C063N42EFM — Miniature Circuit Breakers (MCB)

Schneider Electric C063N42EFM ComPacT NS 630A 4P MCCB, 85kA

MPNC063N42EFM
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Schneider Electric ComPacT NS new generation, C063N42EFM, manually operated 4-pole MCCB, 630 A, MicroLogic 2.0 E electronic trip unit, 85 kA Icu at 240 V AC, fixed mount, IP40.

Schneider Electric C063N42EFM datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C063N42EFM — Identification
ParameterValue
Product nameComPacT NS new generation
Product rangeComPacT
Product range (series)ComPacT NS630b...1600 new generation
Product/component typeCircuit breaker
Device applicationDistribution
C063N42EFM — Ratings
ParameterValue
Rated current (In)630 A at 50 °C
Breaking capacity85 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 40 kA Icu at 500/525 V AC 50/60 Hz conforming to IEC 60947-2 30 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Rated service breaking capacity (Ics)50 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 40 kA at 500/525 V AC 50/60 Hz conforming to IEC 60947-2 30 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 conforming to IEC 60947-2
Rated impulse withstand voltage (Uimp)8 kV conforming to IEC 60947-2
Network type (AC/DC)AC
Network frequency50/60 Hz
Utilisation categoryCategory B
Overvoltage categoryIII
C063N42EFM — Protection
ParameterValue
Trip unit technologyElectronic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)2000 cycles at 690 V In 4000 cycles at 690 V In/2 5000 cycles at 440 V In 6000 cycles at 440 V In/2
Mechanical durability (cycles)10000 cycles
C063N42EFM — Mechanical
ParameterValue
Mounting supportBackplate
Mounting modeFixed
Control typeManually operated
Local signalling/indication4 LEDs (red) for fault indication 1 LED (yellow) for overload
C063N42EFM — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-40...85 °C
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60947
Relative humidity0...95 %
C063N42EFM — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C063N42EFM — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.4...1 x In
Trip unit protection functionsLI

Product details

The C063N42EFM: Breaking capacity hits 85 kA Icu at 240 V AC, 50 kA at 415 V, and still holds 30 kA at 690 V — all per IEC 60947-2. The MicroLogic 2.0 E gives you L (long-time overload) and I (instantaneous short-circuit) protection curves, plus an energy meter built into the trip unit. The LCD display shows metering data locally — useful for spot-checking load without opening the panel door.

Fixed-mount on a backplate, 70 mm connection pitch. Front connections top and bottom — standard for panel build, no special bus adaptors needed. IP40 enclosure, IK07 impact rating; fine for indoor distribution boards, not for washdown zones. Dimensions are 327 H x 280 W x 147 D mm. Neutral on the left. The 4-pole format covers 3-phase plus neutral, common for TN or TT systems where you need to break all poles. Overvoltage category III covers fixed-installation distribution.

Mechanical durability is 10,000 cycles; electrical durability varies from 2,000 cycles at 690 V full load to 6,000 cycles at 440 V half load.

Frequently asked questions

What is the breaking capacity of C063N42EFM at 415 V?

50 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2. That's the N breaking capacity code — the most common rating for 400 V distribution.

Where can I buy C063N42EFM and get a price?

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

What trip unit does C063N42EFM use?

MicroLogic 2.0 E electronic trip unit, rated 630 A. Provides L (long-time overload) and I (instantaneous short-circuit) protection with an integrated energy meter and LCD display.

What standards does C063N42EFM comply with?

EN/IEC 60947-2 for low-voltage switchgear and controlgear. Pollution degree 3, overvoltage category III. IP40, IK07.

MPN
C063N42EFM