EPC-2 UL924 Shunt Relay for Use with Emergency/Normal Control Devices

(Formerly Known As RLY-SW-2)

Comply with life safety codes while conserving energy and preserving lighting design aesthetics with the EPC-2. This slim, unobtrusive device converts regular light fixtures to approved emergency lights and can be flush or grid mounted. During normal operation the same occupancy sensor, relay panel, or lighting control can switch regular and emergency fixtures on and off simultaneously. During utility power interruption, the EPC-2 automatically bypasses the regular lighting controls, turning the emergency lights ON at full brightness. The EPC-2 is ceiling or wall-mounted in a junction box with a single gang plaster ring. It is usually installed in the same area as the emergency fixtures. In addition, the device can be internal to most lighting fixtures.


  • Unique, patented automatic diagnostics:
    • Verify availability of emergency power
    • Test functionality of EPC-2, ballasts, lamps, and LEDs
    • Eliminate need for monthly manual test
    • Allow for installation in remote areas or those inaccessible for manual testing
  • Inverter, fire alarm interface, or remote test options; contact factory for details
  • Plenum-rated
  • Utility and emergency power indicator LEDs
  • Slim, attractive flush mount profile allows easy access to manual test switch and LEDs
  • Integral front-mounted test switch