Skip to main content
Log in
Schneider Electric C10R42D040 — Miniature Circuit Breakers (MCB)

C10R42D040 ComPacT NSX 40A Circuit Breaker, 200 kA at 415 V

MPNC10R42D040
Active

Schneider Electric ComPacT NSX, circuit breaker, 40 A, MicroLogic 2.2 electronic trip, 200 kA Icu at 415 V AC, 4P, toggle control.

$20.48Ref. price · indicative, final on quote
Schneider Electric C10R42D040 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C10R42D040 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C10R42D040 — Ratings
ParameterValue
Rated current (In)40 A at 40 °C
Poles configuration4P
Breaking capacity200 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 200 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 200 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 80 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 65 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 45 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Rated service breaking capacity (Ics)200 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 200 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 200 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 80 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 65 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 45 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
C10R42D040 — 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
C10R42D040 — 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
C10R42D040 — 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 %
C10R42D040 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C10R42D040 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range18...40 A
Trip unit protection functionsLSoI

Product details

The C10R42D040 is a 4-pole ComPacT NSX100R frame circuit breaker with a MicroLogic 2.2 electronic trip unit rated 40 A at 40 °C.

Selectivity and SCCR headroom

At 690 V AC the rating drops to 45 kA Icu, still adequate for 690 V motor circuits. Category A utilization (no intentional short-time delay for selectivity) means this breaker clears fast; coordination with downstream devices relies on the MicroLogic 2.2's adjustable I-t curves, not a delayed trip.

Mounts horizontally or vertically flat on a backplate. Four-pole design with neutral on the left. Five accessory slots available for shunt trips, auxiliary contacts, or communication modules. Connection pitch is 35 mm — standard for panel busbar systems. Dimensions (H x W x D) 161 x 140 x 86 mm fit common enclosure cutouts.

Frequently asked questions

Where can I buy C10R42D040 and how do I get a price?

The C10R42D040 is available to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time, no stock figures listed here.

What is the closest alternative to C10R42D040 in this component family?

Within the ComPacT NSX100R frame, the main variant is the trip unit rating. The C10R42D040 is the 40 A version with MicroLogic 2.2 electronic trip. Other ratings (e.g., 25 A, 63 A, 100 A) share the same frame, accessories, and breaking capacity — only the trip unit rating differs. No pin-compatible alternative exists outside the NSX family; the form factor is specific to ComPacT.

What compliance documentation does this brand provide for C10R42D040?

The C10R42D040 is certified to EN/IEC 60947-2, pollution degree 3 per IEC 60664-1, overvoltage category III, and carries IP40 / IK07 ratings. Schneider Electric typically provides a Declaration of Performance (DoP) and CE/UKCA marking for the EU market. RoHS and REACH compliance is standard for current-production Schneider components.

MPN
C10R42D040