Westinghouse Electric Corporation EHB3090 Circuit Breaker

The Westinghouse EHB3090 3-pole molded case circuit breaker (MCCB) provides overcurrent and short-circuit protection for industrial and commercial power circuits in distribution panels, motor control centers, and switchgear. It is rated 90 A at 480 VAC (50/60 Hz) with a typical 14 kA interrupting rating, and uses a thermal-magnetic trip unit housed in an E-Frame with bolt-on mounting and a toggle handle for straightforward operation. Terminations are line and load lug connections, and the housing employs molded thermoset insulation for rugged service in demanding environments. The EHB3090 supports use in motor feeders, HVAC systems, manufacturing equipment, and general building electrical systems where dependable interruption capability and long service life matter, and the EHB series is known for compact form and compatibility with existing Westinghouse and Eaton systems. It is UL Listed and CSA Certified, and common replacements include Eaton EHB3090, Eaton FD3090, and Westinghouse EDB3090 circuit breakers.