Mitsubishi NF800-SEW 4P 800A Description Description Mitsubishi Circuit breaker 4pole. Ir = 400 – 800A; Icu = Ics = 42kA at AC 440V Related products Mitsubishi FX2N-48ER-ES/UL MITSUBISHI A1SX81 MITSUBISHI Q02HCPU MITSUBISHI FX1N-40MR-DS MITSUBISHI A2NCPU Mitsubishi FX2N-48ER-DS