Mitsubishi NF630-SEW 4P 630A Description Description Mitsubishi Circuit breaker 4pole. Ir = 300 – 630A; Icu = Ics = 42kA at AC 440V Related products MITSUBISHI MR-J2-40A MITSUBISHI A2NCPU Mitsubishi FX2N-48ER-DS MITSUBISHI FR-A540-0.75K-EC MITSUBISHI FR-A540-22K Mitsubishi FX2N-32ET-ESS/UL