Westinghouse Electric EHB1020 Circuit Breaker

Westinghouse EHB1020 Circuit Breaker is a 20 A, 277 V AC bolt-on, single-pole device built for industrial electrical distribution and commercial branch-circuit protection. It features bolt-on mounting and Type EHB construction to provide dependable overload and short-circuit interruption in lighting panels, switchboards, automation panels, machinery electrical cabinets, and building distribution boards operating at 277 V AC. Used by maintenance electricians, OEMs, and facility engineers, it supports panel maintenance, retrofit projects, and replacement of obsolete bolt-on protection devices in systems that require secure mounting and reliable interruption for safety and equipment protection. Key specifications include brand Westinghouse, part number EHB1020, current rating 20 A, voltage rating 277 V AC, and 1-pole operation with manual reset and switching capability. Common replacements include Eaton EHB1020, Siemens HEB1B020, and Square D EJB14020.