Fan Favorite Siemens ED63M040 – 40A 3 Pole Molded Case Circuit Breaker

Part of the Sentron family, this 40A molded case circuit breaker is specifically calibrated for 50°C ambient operating conditions. The bolt-on design integrates seamlessly into Siemens P1, P2, and P3 panelboards, along with motor control centers. Featuring a 25kAIC rating at 480VAC, it provides robust protection for marine and industrial systems. For modern upgrades, this legacy-style ED frame is often replaced by the newer 3VA5140-5EC31-0AA0.