Mitsubishi NF400-SEW 4P 400A Description Description Mitsubishi Circuit breaker 4pole. Ir = 200 – 400A; Icu = Ics = 42kA at AC 440V Related products MITSUBISHI A1ADP-SP MITSUBISHI E1071 MITSUBISHI FR-A540-0.75K-EC MITSUBISHI FX0-30MR-ES Mitsubishi FX2N-48ET-ESS/UL MITSUBISHI A2NCPU