The Relay Interface Module is available in 120, 277 or 347 VAC input voltage configurations. The Relay Interface Module (RIM) is designed to force all relays in a lighting control panel to an ON or closed state regardless of the control panel programmed relay status. This allows the closure of relays during loss of normal (grid) power to allow an alternate power source to drive the lighting loads. Once the RIM senses the normal power returning, the control panel will return to the normal programmed operating mode. UL 924 Listed Accessory (ControlKeeper TouchScreen and LiteKeeper 16 & 32 panels).