Phase Coupler
For the Omni family or Lumina family home control systems - HLC is for single phase 120/240 VAC, 60 Hz systems. The HLC Phase Coupler mounts by the circuit breaker box and is used to connect the signal from L1 to L2 within the circuit breaker box. Although HLC is extremely robust and less susceptible to power line conditions, HAI recommends the use of a Powerline Phase Coupler in every HLC installation. The LED on the Phase Coupler shows that it is working.