Mitsubishi NF400-HEW 4P 400A Description Description Mitsubishi Circuit breaker 4pole. Ir = 200 – 400A; Icu = Ics = 65kA at AC 440V Related products MITSUBISHI AJ71E71-S3 MITSUBISHI MDS-A-SPJ-22 Mitsubishi FX2N-16EYR-ES/UL Mitsubishi FX2N-48ET-ESS/UL Mitsubishi FX2N-32ER-ES/UL MITSUBISHI E1071