Three-pole molded case circuit breaker equipped with electronic trip unit. It continuously samples phase current signals and executes multi-stage protection logic including long-time overload, short-time delay and instantaneous short circuit. Built-in fault self-diagnosis function, optional auxiliary contact and alarm contact for remote status feedback to PLC and SCADA system.

Certification: CE

Insulating molded housing, electronic trip module, silver alloy contact assembly, arc extinguishing chamber, operating mechanism and auxiliary contact terminal. Common faults: contact overheating, protection threshold drift, false tripping and trip unit power failure.