Siemens ED41B020N Molded Case Circuit Breaker

Siemens ED41B020N is a 1-pole, 20-amp molded-case circuit breaker in the ED4 family, rated for 120/277 VAC. It provides a 22 kA interrupt rating at 277 VAC, enabling safe interruption of short-circuit faults on typical commercial lighting and general power circuits. The device uses a thermal/magnetic trip mechanism to protect single‑phase loads from overloads and short circuits. As part of Siemens' Sentron low‑voltage MCCB lineup, the ED41B020N is designed for ED4‑compatible panel boards and is commonly used to protect individual lighting runs or general loads within commercial installations. With its 1‑pole, 20‑amp rating and ED4 form factor, it suits compact, space‑conscious distribution panels where reliable overcurrent protection is required.