Mitsubishi NF630-SEW 4P 630A Description Description Mitsubishi Circuit breaker 4pole. Ir = 300 – 630A; Icu = Ics = 42kA at AC 440V Related products MITSUBISHI MDS-A-SPJ-22 MITSUBISHI FR-A540-22K MITSUBISHI FR-PU04 MITSUBISHI Q02HCPU MITSUBISHI E1071 Mitsubishi FX0N-65EC