Siemens / Murray MBK200M - 200A 2 Pole Main Breaker Kit

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Built for residential and commercial service entrances, the MBK200M is a complete 200-amp main breaker conversion kit. It installs into Murray Rock Solid, Siemens EQ, and EQIII loa d centers, providing a secure bolt-on connection. This legacy replacement kit supersedes the EQ9685 and includes the breaker, mounting hardware, line side lugs, and a deadfront filler plate. Delivering a 22 kAIC rating at 120/240V, it ensures robust thermal-magnetic protection. Show more