FXM320 is a complete manual source changeover assembly for two Compact INS320 4 poles switch disconnectors. It provides an easy way to implement source changeover functions with small size, taking up less room in the switchboard. The operational current is 320A at 690VAC 50/60Hz, in categories AC22A/AC23A. The operational current is 320A at 125VDC (2 poles in series) or at 250VDC (4 poles in series), in categories DC22A/DC23A. There is a single 3 position rotary handle that controls the two switch disconnectors (normal source ON, OFF, replacement source ON). A complete source changeover assembly can be ordered with a single catalogue number. A complete source changeover assembly can be ordered with a single catalogue number.