Mitsubishi NF400-UEW 4P 400A Description Description Mitsubishi Circuit breaker 4pole. Ir = 200 – 400A; Icu = Ics = 200kA at AC 440V Related products Mitsubishi FX2N-48ET-ESS/UL Mitsubishi FX2N-48ER-ES/UL MITSUBISHI FR-A540-15K-EC Mitsubishi FX2N-32ER-ES/UL Mitsubishi FX0N-65EC MITSUBISHI A1SX81