Affordable Siemens / Murray MQJ3200-R – 200A 3 Pole Molded Case Circuit Breaker

Part of the legacy MQ frame lineup, the Siemens MQJ3200 provides robust thermal-magnetic protection for commercial electrical systems. This 3-pole, 200A unit handles demanding loads across 240VAC networks. As a dedicated replacement component, it mounts into older Murray and Siemens load centers or metering equipment. For modern upgrades, this breaker is officially replaced by the QJ23B200 catalog number. Rated at 10kAIC, it features a non-interchangeable trip and is HACR rated for HVAC use.