Mitsubishi NF630-SEW 4P 630A Description Description Mitsubishi Circuit breaker 4pole. Ir = 300 – 630A; Icu = Ics = 42kA at AC 440V Related products MITSUBISHI AJ71E71-S3 MITSUBISHI FX0-20MR-ES MITSUBISHI FR-PU04 Mitsubishi FX2N-32ER-ES/UL Mitsubishi FX2N-48ET-ESS/UL MITSUBISHI MDS-A-SPJ-22