Industrial SEH-1-C-20U-20A-277V-1 Circuit Breaker

Challenger SEH1C020 is a 1-pole, 20-amp molded‑case circuit breaker rated for 277 V, part of the Challenger SEH family for industrial and commercial distribution. The model designation 1P, 20A, 277V confirms its single‑pole, 20‑amp rating in 277‑volt systems, and it is listed among Challenger/Sylvania SEH devices used in compatible panels. This breaker provides overcurrent protection with an interrupting capacity of 14 kA at 277 V, delivering reliable protection for moderate loads and allowing quick reset after tripping. As a molded‑case device, it matches the SEH form factor and is intended for use in installations that specify Challenger SEH breakers for 277 V circuits in commercial or light industrial environments. Typical applications include protecting branch circuits fed from 277 V distribution in facilities where lighting and other 277 V loads require dependable single‑pole protection.