Siemens QJ23B150 Molded Case Circuit Breaker QJ Series

Siemens QJ23B150 is a three‑pole, 150 A molded‑case circuit breaker in the QJ2 frame, designed for bolt‑on mounting in Siemens QJ series panels. It delivers thermal/magnetic protection with long‑time and instantaneous trip functions and provides load‑side lug terminals for secure wiring. Rated for 240 V alternating current, it carries a 10 kA interrupt rating, making it suitable for protecting three‑phase motors and distribution circuits in compact industrial installations. As a member of Siemens’ low‑voltage MCCB family, the QJ23B150 combines proven protection performance with a compact footprint for reliable panel protection in industrial environments.