Fuse Switch Disconnector, Isolation Fuse Switch, Fuse Switch, Fuse Switches, Fuse Base, Fuse Holder, Switch Disconnector. Fuse Switch Disconnector, Isolation Fuse Switch, Fuse Switch, Fuse Switches, Fuse Base, Fuse Holder, Switch Disconnector.HR17 series Fuse switch-disconnectors, rated insulating voltage AC690V, rated operating voltage ...