Siemens QJH23B225 Molded Case Circuit Breaker

Siemens QJH23B225 is a three-pole, 225 A molded-case circuit breaker from the QJ frame family, rated for 240 V AC with a 22 kA short‑circuit interrupting capacity at 240 V. It is a bolt‑on device with load-side lug terminals and provides thermal‑magnetic protection, including long-time and instantaneous trip functions. As part of the QJ frame MCCB lineup, the QJH2 type is designed for 240 V three‑phase circuits in industrial or commercial distribution where rugged protection and straightforward field replacement are needed. The model number QJH23B225 specifies a 3P configuration and a 225 A continuous rating, delivering reliable protection for feeders and branch circuits while maintaining compatibility with Siemens’ legacy QJ hardware.