Westinghouse EHB3050 Three Phase Circuit Breaker

The Westinghouse EHB3050 is a 50 A, 3-pole circuit breaker for 480 VAC three-phase systems, part of the Type EHB family and intended for industrial and commercial power distribution. It delivers overload and short-circuit protection for equipment in motor control centers, automation panels, conveyors, processing machinery, HVAC systems, and other three-phase branches, making it suitable for industrial machinery and facility infrastructure where high‑voltage interruption is required. The device features manual reset and switching capability and is built with heavy‑duty industrial construction, compatible with standard distribution panels and motor control centers. Key specifications include Part Number EHB3050, Current Rating 50 A, Voltage Rating 480 VAC, Number of Poles 3, Phase 3, Breaker Type Type EHB, and its application as a branch circuit and equipment protection device. Common replacements listed for reference include Eaton EHB3050, Siemens HEB3B050, and Square D EJB34050.