Siemens QJ23B225 is a three-pole, 225 A molded‑case circuit breaker rated for 240 V AC, designed to protect low‑voltage distribution circuits in industrial and commercial panels. It delivers a 10 kA interrupting rating at 240 V and uses thermal/magnetic trip technology to handle overload and short‑circuit conditions. As part of Siemens’ QJ family, this unit is suitable for protecting feeders, motors, and panel circuits in compatible low‑voltage switchgear and panelboards where QJ‑series breakers are approved.
