Eaton / Westinghouse E3040 – 40A 3 Pole Molded Case Circuit Breaker Top Pick

Built to maintain operational continuity in commercial environments, the 40A E3040 delivers essential overcurrent defense. Electricians can install this breaker into existing Westinghouse panelboards without modifying the enclosure. It replaces EHD3040 and EB3040 configurations. With a 7kA short-circuit rating at 240VAC, the device utilizes non-interchangeable trip technology to safeguard branch circuits.