Mitsubishi NF800-SEW 4P 800A Description Description Mitsubishi Circuit breaker 4pole. Ir = 400 – 800A; Icu = Ics = 42kA at AC 440V Related products MITSUBISHI FR-A540-0.75K-EC MITSUBISHI FR-A540-15K-EC MITSUBISHI A2NCPU MITSUBISHI MR-J2-40A MITSUBISHI A3ACPUR21 MITSUBISHI A1ADP-SP