Mitsubishi NF630-SEW 4P 630A Description Description Mitsubishi Circuit breaker 4pole. Ir = 300 – 630A; Icu = Ics = 42kA at AC 440V Related products MITSUBISHI FR-PU04 MITSUBISHI Q02HCPU Mitsubishi FX2N-48ER-ES/UL MITSUBISHI MR-J2-40A MITSUBISHI FR-A540-22K Mitsubishi FX2N-16EX-ES/UL