Fuji Electric EW400EAG is a 3‑pole, 300 A thermal‑magnetic circuit breaker designed to interrupt and protect three‑phase feeders. As a thermal magnetic device, it provides overload protection and fast short‑circuit interruption, making it suitable for distribution panels and industrial electrical systems. The EW400EAG model indicates a 3P configuration with a 300 A rating, guiding its use in circuits sized for that current in typical three‑phase service arrangements.
