Mitsubishi NF400-HEW 4P 400A Description Description Mitsubishi Circuit breaker 4pole. Ir = 200 – 400A; Icu = Ics = 65kA at AC 440V Related products MITSUBISHI FX0-30MR-ES MITSUBISHI E1071 MITSUBISHI FX1N-40MR-DS MITSUBISHI FR-A540-22K MITSUBISHI A3ACPUR21 MITSUBISHI FR-A540-15K-EC