Siemens MXD63B800 – 800A 3 Pole Molded Case Circuit Breaker Brand New

Engineered for demanding industrial environments, the Siemens MXD63B800 delivers robust overcurrent protection. This 3-pole, 800A molded case circuit breaker utilizes a thermal-magnetic trip unit with adjustable magnetic settings from 4000A to 8000A. It installs into Siemens Sentron Type S4 and S5 panelboards, plus SB-series switchboards and motor control centers. The unit-mount design ensures secure integration. Rated for 65kAIC at 240VAC, this MD frame breaker handles high fault currents.