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Schneider Electric C4037E400 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric C4037E400 ComPacT NSX MicroLogic 7.3 E Tr

MPNC4037E400
Active

Schneider Electric ComPacT NSX400...630, MicroLogic 7.3 E electronic trip unit, 400 A at 40 °C, LSIR protection, LCD display, EN/IEC 60947-2.

Schneider Electric C4037E400 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

C4037E400 — 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
C4037E400 — Electrical Ratings
ParameterValue
Rated operational voltage (Ue)440 V AC 50/60 Hz
Poles description3P
Network typeAC
Network frequency50/60 Hz
C4037E400 — Identification
ParameterValue
Product / component typeTrip unit
Product range / familyComPacT
C4037E400 — 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 60947-1
C4037E400 — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

The C4037E400 is a MicroLogic 7.3 E electronic trip unit from the ComPacT NSX400...630 range, rated 400 A at 40 °C for distribution applications. It provides LSIR protection — long-time (L), short-time (S), instantaneous (I), and earth-leakage (R) — with an integrated earth-leakage Class A sensor. The LCD display shows energy metering, demand values, and time-stamped event logs, while the 20-minute thermal memory before and after tripping ensures consistent overload response on reclose cycles.

Protection curve and adjustability

Long-time pickup (Ir) adjusts from 160 to 400 A, with delay (Tr) settable between 15 and 400 s at 1.5 × Ir. Short-time pickup (Isd) spans 1.5 to 10 × Ir, delay (tsd) from 0 to 0.4 s with I²t on or off. Instantaneous pickup (Ii) covers 1.5 to 12 × In. Earth-leakage can be switched OFF via the IΔn rotary switch. All adjustments are made on the trip unit itself — no external programming tool required.

Rated for a fixed-mounted circuit breaker in a 3P/3D configuration. IP40 front face protection keeps out tools and wires during panel wiring.

Frequently asked questions

Who supplies C4037E400 and how is it quoted for volume purchases?

The C4037E400 is supplied through independent distribution. Submit an RFQ with your target quantity and delivery window; availability and pricing are confirmed at quote time.

What is C4037E400's listed range (ComPacT) on this component line?

It belongs to the ComPacT NSX400...630 range, specifically the MicroLogic 7.3 E electronic trip unit family.

What is C4037E400's listed standards (EN/IEC 60947-2) on this component line?

The trip unit is designed and tested to EN/IEC 60947-2, the standard for low-voltage switchgear and controlgear assemblies.

What compliance documentation does this brand provide for C4037E400 (RoHS, REACH, UL, IEC)?

The product carries EN/IEC 60947-2 certification. For RoHS, REACH, and UL documentation, request the manufacturer's compliance pack at quote time — these are typically provided with the shipment.

MPN
C4037E400