1HD367NF1HD367NF Eaton Disconnect 800 Amp 3 Pole 600V The 1HD367NF is a heavy duty non fusible disconnect switch designed for 3 phase operation at 600V. With a high amperage rating of 800A, this switch is enclosed in a NEMA type 1 indoor enclosure. Operating as a single throw switch, it is suitable for applications where non fused disconnection is required. It supports a three phase motor with a power rating of 500HP at 480V and 500HP at 600V.