Bargain Siemens EF3B100 – 100A 3 Pole Molded Case Circuit Breaker

Engineered for commercial applications, the Siemens EF3B100 is a 3-pole, 100A molded case circuit breaker operating up to 600VAC. It provides reliable long-time and instantaneous (LI) trip functions. This bolt-on unit fits legacy Siemens, I-T-E, and FC-1 panelboards, plus FC-20 switchboards. As an older E-Frame model, it is officially replaced by the ED63B100. Rated at 14kAIC at 480VAC, it features fixed thermal-magnetic settings and includes load side lugs.