In Enphase IQ installations, the multiphase Q
Relay works with acts as a grid monitoring and
disconnection device. The Q Relay physically
isolates the IQ Series Microinverters from the grid
when abnormalities are sensed or as required by
grid regulations, and it automatically reconnects
when valid grid conditions resume.
The 4-pole Q Relay isolates all phase and neutral
lines and works together with the Enphase
Envoy-S gateway.