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Schneider Electric C1044B100 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric C1044B100 ComPacT NSX MicroLogic 4.2 AB T

MPNC1044B100
Active

Schneider Electric ComPacT NSX100...250, MicroLogic 4.2 AB trip unit, 100 A at 40 °C, 4P, LSoIR + earth-leakage, EN/IEC 60947-2.

Schneider Electric C1044B100 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C1044B100 — 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 Color indicator (yellow) for residual current
C1044B100 — Electrical Ratings
ParameterValue
Rated operational voltage (Ue)440 V AC 50/60 Hz
Poles description4P
Neutral pole positionLeft
Network typeAC
Network frequency50/60 Hz
C1044B100 — Identification
ParameterValue
Product / component typeTrip unit
Product range / familyComPacT
C1044B100 — 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
C1044B100 — Approvals
ParameterValue
StandardsEN/IEC 60947-2

Product details

Trip unit for ComPacT NSX breakers

The Schneider Electric C1044B100 is a MicroLogic 4.2 AB electronic trip unit for the ComPacT NSX100...250 range, rated 100 A at 40 °C in a 4-pole configuration. It provides LSoIR protection — long-time overload (L), short-time short-circuit with fixed delay (So), instantaneous short-circuit (I), and integrated earth-leakage (R) — all in one unit. The trip unit is EN/IEC 60947-2 certified, so it meets the standard for low-voltage switchgear and controlgear in industrial panels.

Protection settings and adjustability

The long-time pickup Ir is adjustable from 40 to 100 A, letting you match the trip threshold to the actual load current. Short-time pickup Isd is adjustable from 1.5 to 10 times Ir, while instantaneous pickup Ii is fixed at 1500 A. Earth-leakage sensitivity IΔn and time delay Δt are both adjustable, and the unit includes a rotary switch to disable earth-leakage protection when needed.

The trip unit mounts fixed in a ComPacT NSX100...250 circuit breaker.

Frequently asked questions

What is C1044B100's listed range (ComPacT) on this component line?

The C1044B100 belongs to the ComPacT NSX100...250 range of electronic trip units.

What is C1044B100's listed standards (EN/IEC 60947-2) on this component line?

The C1044B100 is certified to EN/IEC 60947-2, the standard for low-voltage switchgear and controlgear.

What protection functions does the MicroLogic 4.2 AB trip unit provide?

It provides LSoIR protection: long-time overload (L), short-time short-circuit with fixed delay (So), instantaneous short-circuit (I), and integrated earth-leakage (R).

How do I get current pricing and availability for C1044B100?

The C1044B100 is sourced to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

MPN
C1044B100