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Schneider Electric C10B34V040 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric C10B34V040 ComPacT NSX MCCB, 40 A, 40 kA

MPNC10B34V040
Obsolete

Schneider Electric ComPacT NSX, NSX100B, earth leakage circuit breaker, 3P, 40 A at 40 °C, 40 kA Icu at 240 V AC, MicroLogic 4.2 electronic trip unit.

$1,014.60 – $1,882.44Ref. price · indicative, final on quote
Schneider Electric C10B34V040 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C10B34V040 — Residual Current Protection
ParameterValue
Earth-leakage protection class / typeClass A
Trip unit technologyElectronic
Local signalling / indicationFlashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload
C10B34V040 — Electrical Ratings
ParameterValue
Rated current (In)40 A at 40 °C
Rated operational voltage (Ue)440 V AC 50/60 Hz
Poles description3P
Network typeAC
Network frequency50/60 Hz
Rated insulation voltage (Ui)500 V AC 50/60 Hz
Rated impulse withstand voltage (Uimp)8 kV
Overvoltage categoryIV
Electrical durability50000 cycles at 440 V In/2 30000 cycles at 440 V In 20000 cycles at 690 V In/2 10000 cycles at 690 V In
Mechanical durability (operating cycles)50000 cycles
C10B34V040 — Identification
ParameterValue
Product nameComPacT NSX
Product / component typeEarth leakage circuit breaker
Product range / familyComPacT
Device short nameNSX100B
C10B34V040 — Mechanical
ParameterValue
Mounting supportBackplate
Mounting positionHorizontal and vertical Flat on the back
Control typeToggle
C10B34V040 — 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 %
Operating altitude0...2000 m without derating 2000 m...5000 m with derating
C10B34V040 — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

It's a 3-pole unit rated 40 A at 40 °C, with an integrated MicroLogic 4.2 electronic trip unit that provides overload (L), short-time short-circuit (So), instantaneous (I), and earth-leakage (R) protection. At 415 V AC the breaking capacity is 25 kA Icu, and at 440 V it's 20 kA Icu, all per IEC 60947-2. That standard certifies the breaker for industrial application, not just residential.

Deployment context

Mounts on a backplate in a distribution panel — horizontal or vertical orientation, flat on the back. The toggle control and front connections (both upside and downside) make it straightforward to wire in a panel layout. Mechanical durability is 50,000 cycles; electrical durability ranges from 50,000 cycles at 440 V at half rated current down to 10,000 cycles at 690 V at full rated current — so if you're switching near its limits frequently, factor that in.

Frequently asked questions

What is the breaking capacity of C10B34V040 at different voltages?

40 kA Icu at 220/240 V AC, 25 kA Icu at 380/415 V AC, 20 kA Icu at 440 V AC, and 15 kA Icu at 500 V AC, all per IEC 60947-2.

What trip unit does C10B34V040 use?

It uses a MicroLogic 4.2 electronic trip unit with L (overload), So (short-time short-circuit with fixed delay), I (instantaneous short-circuit), and R (earth-leakage) protection.

Where can I buy C10B34V040 and get current pricing?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

MPN
C10B34V040