The C2534A250 is a MicroLogic 4.2 AL electronic trip unit for the ComPacT NSX250 moulded-case circuit breaker frame. It is rated 250 A at 40 °C, three-pole, for AC distribution networks at 440 V, 50/60 Hz. The trip unit integrates earth-leakage protection (Class A) alongside LSoI protection — long-time, short-time with fixed delay, and instantaneous short-circuit. This is the electronic brain that goes into the NSX250 breaker; it is not a standalone breaker.
Deployment context
The ambient operating range of -25 to 70 °C covers most electrical rooms and enclosures without forced cooling.
