Siemens MBK225 – 225A 2 Pole Main Breaker Kit Top Pick

Part of the SENTRON family, the Siemens MBK225 is a 225-amp main breaker kit engineered for residential power distribution. It provides essential long-time and instantaneous trip functions to safeguard electrical systems. This plug-on breaker mounts into legacy Siemens EQ series load centers. It utilizes a specialized 4-pole width design to ensure a secure fit within compatible panelboards. Delivering a 22kAIC interrupt rating at 120/240VAC, this unit features thermal-magnetic technology.