Mitsubishi NF800-SEW 4P 800A Description Description Mitsubishi Circuit breaker 4pole. Ir = 400 – 800A; Icu = Ics = 42kA at AC 440V Related products Mitsubishi FX2N-16EYR-ES/UL Mitsubishi FX2N-16EYT-ESS/U Mitsubishi FX2N-32ER-ES/UL MITSUBISHI MR-J2-40A Mitsubishi FX2N-48ET-ESS/UL MITSUBISHI FX0-20MR-ES