Mitsubishi NF630-HEW 4P 630A Description Description Mitsubishi Circuit breaker 4pole. Ir = 300 – 630A; Icu = Ics = 65kA at AC 440V Related products Mitsubishi FX2N-48ET-ESS/UL Mitsubishi FX2N-32ET-ESS/UL MITSUBISHI FX1N-40MR-DS Mitsubishi FX2N-16EYR-ES/UL Mitsubishi FX2N-48ER-DS MITSUBISHI MDS-A-SPJ-22