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Schneider Electric C1042B100 — Miniature Circuit Breakers (MCB)

C1042B100 MicroLogic 2.2 AB Trip Unit, ComPacT NSX, 100 A

MPNC1042B100
Active

Schneider Electric ComPacT NSX series, MicroLogic 2.2 AB electronic trip unit, 4 poles, 100 A at 40 °C, LSoI protection, EN/IEC 60947-2.

Schneider Electric C1042B100 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C1042B100 — Identification
ParameterValue
Product rangeComPacT
Product range (series)ComPacT NSX100...250
Product/component typeTrip unit
Device applicationSpecial application
C1042B100 — Ratings
ParameterValue
Poles configuration4P
Rated operational voltage (Ue)690 V AC 50/60 Hz
Network type (AC/DC)AC
Network frequency50/60 Hz
C1042B100 — Protection
ParameterValue
Trip unit technologyElectronic
Earth-leakage protectionWithout
C1042B100 — Mechanical
ParameterValue
Local signalling/indicationFlashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload
C1042B100 — 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 60947-1
C1042B100 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C1042B100 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range40...100 A
Trip unit protection functionsLSoI

Product details

The C1042B100 is a MicroLogic 2.2 AB electronic trip unit from the ComPacT NSX100...250 range, rated 100 A at 40 °C in a 4-pole fixed-mount configuration. It provides LSoI protection (long-time, short-time, instantaneous) for AC networks per EN/IEC 60947-2, making it a direct replacement or spare for an existing ComPacT NSX breaker that needs electronic trip functionality with basic adjustable settings.

Short-time pick-up (Isd) adjusts from 1.5 to 10 x Ir across nine settings, with a fixed delay of 0.35 s at 7.2 x Ir or 0.5 s at 6 x Ir. Instantaneous pick-up (Ii) is fixed at 1500 A. For a site engineer coordinating downstream breakers, the adjustable Isd band lets you set a selective trip point above the feeder's inrush without sacrificing arc-fault clearance speed.

Integration into a ComPacT NSX panel

This trip unit snaps into the front of a ComPacT NSX100, NSX160, or NSX250 fixed-mount breaker. Neutral position is left, and the neutral protection settings offer three options: 0.5 x Ir (3D + N/2), 1 x Ir (4D), or no protection (3D). The IP40 face protection (IEC 60529) is sufficient for standard panel interiors; the unit operates from -25 to 70 °C and stores from -50 to 85 °C.

Frequently asked questions

What is the C1042B100's listed range and standard?

It belongs to the ComPacT NSX100...250 range and complies with EN/IEC 60947-2 for circuit-breaker performance.

What are the key protection settings on the C1042B100?

Long-time pick-up (Ir) adjusts 40–100 A, short-time pick-up (Isd) adjusts 1.5–10 x Ir with nine settings, and instantaneous pick-up (Ii) is fixed at 1500 A.

Where can I buy the C1042B100 and what is the lead time?

The C1042B100 is sourced and quoted to order against an RFQ through independent distribution; current availability and pricing are confirmed at quote time.

MPN
C1042B100