Siemens EF3B050 – 50A 3 Pole Molded Case Circuit Breaker Top Rated

Operating as a crucial safety device for commercial facilities, this 50A molded case circuit breaker features fixed thermal and magnetic trip elements. Installation is straightforward as it bolts into older FC-1 panelboards and FC-20 switchboards from Siemens or I-T-E. When a modern equivalent is required, the ED63B050 serves as the official factory replacement. With an 18kAIC rating at 240VAC, it provides substantial short-circuit protection for aging electrical infrastructure.