Siemens QJH23B200 Molded Case Circuit Breaker

Siemens QJH23B200 is a 3-pole, 200 A molded-case circuit breaker from the QJ frame family (QJH2 type) designed for 240 V three-phase distribution. It features a thermal-magnetic trip mechanism with long-time and instantaneous protection and offers an interruption rating of 22 kA at 240 V, making it suitable for protecting feeders and branch circuits in commercial and light-industrial panels. The unit is bolt-on mounted and provides load-side lug terminals for secure conductor connections, ensuring straightforward integration in Siemens QJ panel enclosures. With its 3P, 240 VAC rating and 22 kA short-circuit rating, QJH23B200 is intended for use where compact, high-current protection is required in 240 V systems, and it is sold as part of Siemens’ QJ series with a non-interchangeable trip. In addition to overcurrent protection, the QJH23B200 supports protection of motor-driven loads and other feeders in distribution assemblies, delivering reliable protection for electrical circuits up to 200 A in industrial or commercial environments.