Overview
The C4042D250 is a MicroLogic 2.3 electronic trip unit for the Schneider ComPacT NSX400 and NSX630 circuit breaker frames, rated 250 A at 40 °C with 4 poles (4d) and LSoI protection — long-time, short-time, and instantaneous. It is a fixed-mount, Class II device compliant with EN/IEC 60947-2.
Lifecycle and sourcing
Schneider discontinued the C4042D250 on 2024-12-01. No official successor is listed; remaining units are available through surplus and broker channels. Send an RFQ to confirm quantity and lead time for line-down or last-time-buy needs.