Enphase Q Relay – single phase




Relay controller for voltage/frequency compliance for single-phase systems


Q Relay

In Enphase installations, the Q Relay (network system relay controller) acts as a physical disconnection device relay controller for single-phase installations.

During specified grid abnormalities, the Q Relaydisconnects the Enphase Microinverters from the AC grid, and when the voltages return to normal and the grid frequency is in the acceptable range, the Q Relayreconnects the system.

The Q Relay works in series with the Envoy-S tobreak both line and neutral, when needed, per grid requirements.

Easy to Install

• Lightweight and simple
• DIN rail mount for quick installation


• Dependable load control
• Automatically resets when normal voltage resumes


• Performs voltage and frequency ride-through• Remote upgrade capability
• Easy to read LEDs


Front of relay

Left side of relay

Right side of relay

Bottom of relay

Top of replay


Q Relay incorporated in Enphase IQ solar range of distribution boards



Find out more about IQ7


Enphase microinverter design tool