Enphase Relay Q (single-phase)
Enphase Relay Q (single-phase)

Enphase Single-Phase Q Relay

By Julien Mawet · Solar PV Expert at Wattuneed • Updated April 2026
Dhs1,072.23
Tax included
RELAIS-Q-mono
0712971139992

In Enphase installations, the single-phase Q relay (decoupling protection) acts as a physical grid disconnection device for single-phase installations.

Enphase Relay Q (single-phase)

Enphase Relais Q (monophasé)

In Enphase installations, the single-phase Q relay (decoupling protection) acts as a physical grid disconnection device for single-phase installations.
In the event ofspecific grid faults, the Q relay disconnects Enphase microinverters from the AC grid. When voltages and/or frequencies return to acceptable ranges, the Q relay reconnects the system.
The Q relay works in conjunction with the Envoy-S, and ensures that both neutral and phase conductors are disconnected according to grid requirements.

Easy to install

  • Lightweight and simple
  • DIN rail mounting for rapid installation

Reliable

  • Reliable load control
  • Automatic reset on return to normal network conditions

Intelligent

  • Management of voltage and frequency dips
  • Can be updated remotely
  • Easy-to-understand LED display

Technical specifications

SPÉCIFICATIONS Q-RELAY-1P-INT

Coupling Protection - Single-phase network (50 Hz)
Overvoltage category III
Pollution degree 2
AC voltage operating range from 85 to 270 Vrms
Nominal input voltage (Vnom) 230 / 240 Vrms
Nominal frequency 50 Hz
Frequency and voltage acquisition time under normal operation 100 ms
Number of protected voltage inputs 1
Number of IQ 7 microinverters per phase Up to 19 Enphase IQ 7 Microinverters or 16 Enphase IQ 7+
Number of Q Relays per system Up to four active Q relays per system

Type of electrical output

Double-pole normally open contactor (L1 and N)
Output power 4.8kVA
Type of electrical output 230 to 240 Vrms, 20A
Standby power consumption 10 VA
LEDs Two LEDs red/green: one for max/min U tripping and another for max/min frequency tripping
Mounting 35 mm DIN rail (standard)
Width 53 mm
Overvoltage - L1 N output Combination (1kV 2Ω)
Operating temperature range -40 °C to 50 °C
IP protection rating IP 20 (To be used in a protected environment)
Humidity 0% to 95% non-condensing
Compliance IEC 61010

EMC Compliance

IEC 61326-1, BS EN 61000-3-2, BS EN 61000-3-3, BS EN 50065-1, BS EN 50065-2-2
Warranty 5 years
RELAIS-Q-mono

Specific References

UPC
712971139992
EAN13
0712971139992
New

Enphase Single-Phase Q Relay — Mounting and accessories

Enphase Single-Phase Q Relay by Enphase is available in our Mounting and accessories catalog. Product weight: 0.5 kg. Reference: RELAIS-Q-mono.