Enphase Three-Phase Q-Relay - IQ7 / IQ8 Decoupling Relay
Enphase Three-Phase Q-Relay - IQ7 / IQ8 Decoupling Relay

Three-phase Q relay Enphase Q-RELAY-3P-INT - IQ7/IQ8 Microinverter Decoupling Protection

£211.76
Tax included
Q-RELAY-3P-INT
0712971131248

The Enphase three-phase Q-Relay is an essential protection and decoupling device that ensures your solar installation complies with grid standards. This smart relay acts as a safety circuit breaker, capable of instantly isolating your microinverters from the electrical grid in the event of a voltage or frequency anomaly, thus ensuring optimal protection for equipment and people.

A true centrepiece of the Enphase Energy ecosystem, the Q-Relay (3P) is designed to work in harmony with the Envoy-S or IQ Gateway. It continuously monitors the three phases of the system and controls automatic reconnection once grid conditions have stabilised. This module is essential for the proper functioning of IQ7 and IQ8 microinverters, ensuring the safety of your solar panels while simplifying the wiring in your electrical panel.

The technical advantages of the three-phase Q-Relay include:

  • Integrated protection against frequency and voltage variations (VDE standard).
  • Simplified installation on DIN rail for time savings during assembly.
  • Intelligent disconnection management on all three phases for total safety.

Installation of a Q-Relay is mandatory to validate the Enphase warranty and ensure reliable and compliant energy production over the long term.

EAN: 0712971131248

Enphase three-phase Q relay - Intelligent decoupling protection



The Enphase 3-Phase Q-Relay (Q-RELAY-3P-INT ) is an intelligent 4-pole decoupling protection device designed for photovoltaic installations with Enphase IQ7 and IQ8 series microinverters. It continuously monitors the grid and automatically disconnects the microinverters in the event of a grid fault, in accordance with strict European regulations.



This relay is essential for Enphase three-phase installations to ensure compliance with grid safety standards and to enable automatic reconnection when normal conditions are restored.




Enphase Relais Q (multiphasé)

Grid safety and compliance

The four-pole Q Relay monitors power system parameters in real time and reacts instantly to faults:



  • Voltage monitoring: Automatic detection of overvoltage and undervoltage on each phase (L1, L2, L3)
  • Frequency monitoring: Protection against frequency variations (min f / max f)
  • DC injection detection: Continuous measurement of DC injection to protect the network
  • Four-pole isolation: Physical disconnection of all phases (L1, L2, L3) and neutral (N)
  • Automatic reconnection: Automatic re-establishment of connection when normal network conditions return



Regulatory compliance: The Q Relay meets the strict requirements of the European decoupling protection standards for grid-connected photovoltaic installations (IEC 61010, EN 61010-1).





Intelligent operation with Envoy-S

The Q Relay works in perfect synergy with the Enphase Envoy-S gateway for centralised, intelligent management:



  • Communication via Envoy-S: The relay receives its commands and transmits its status via the Envoy-S gateway.
  • Remote software updates: Relay firmware can be updated via the Enphase cloud
  • Flexible configuration: The relay can be configured to monitor 1, 2 or 3 phases depending on your installation
  • Real-time monitoring: View relay status via the Enphase Enlighten application





Quick and easy installation

Designed to facilitate the work of installers, the three-phase Q Relay stands out for its ease of installation:



  • Standard 35mm DIN rail mounting: Quick installation in any electrical panel
  • Compact and lightweight: Only 107mm wide (approx. 6 DIN modules)
  • Clear terminal blocks: Easy identification of inputs (L1, L2, L3, N) and outputs
  • Integrated diagnostic LEDs: 4 red/green LEDs for instantaneous display of the status of each phase and tripping conditions





Detailed technical specifications

Caractéristique Valeur
Référence Enphase Q-RELAY-3P-INT
EAN13 0712971131248
Type de protection Protection de découplage tétrapolaire (50Hz) avec détection injection DC
Catégorie surtension (EN 61010-1) III
Degré de pollution (EN 61010-1) 2
Plage de fonctionnement tension AC 85 – 265 Veff
Tension d'entrée nominale (Vnom) 230 / 240 Veff
Fréquence nominale 50 Hz
Temps d'acquisition (fonctionnement normal) 100 ms (5 cycles @ 50Hz)
Nombre d'entrées tension protégée Jusqu'à 3 phases
Nombre micro-onduleurs IQ7 par phase Jusqu'à 19 x IQ7 ou 16 x IQ7+ par phase
Nombre micro-onduleurs IQ8 par phase Jusqu'à 12 x IQ8M ou 10 x IQ8+ par phase
Nombre max de Relais Q par système 20 relais Q actifs max
Type de sortie électrique Relais tétrapolaire normalement ouvert (L1, L2, L3, N)
Puissance de sortie 6 kVA par phase
Tension / Courant sortie 230 / 240 Veff, 25A par phase
Puissance de consommation à vide 18 VA
LEDs de diagnostic 4 LEDs rouge/vert : 3 pour surtension/sous-tension + 1 pour fréquence/injection DC
Montage Rail DIN 35mm (standard)
Largeur 107 mm (~6 modules DIN)
Plage température fonctionnement -40°C à +50°C
Indice de protection IP20 (utilisation en environnement protégé)
Humidité 0 à 95% sans condensation
Conformité IEC 61010, EN 61010-1, IEC 61326, BS EN 50065-1&2-2, BS EN 61326-1&2, BS EN 61000-3-11&12
Garantie 5 ans constructeur Enphase





Installation capacity per phase

Modèle micro-onduleur Puissance nominale Nombre max par phase Puissance totale par phase
Enphase IQ7 290 W 19 unités 5,5 kW
Enphase IQ7+ 349 W 16 unités 5,6 kW
Enphase IQ7X 384 W 15 unités 5,8 kW
Enphase IQ7A 366 W 16 unités 5,9 kW
Enphase IQ8M 480 W 12 unités 5,8 kW
Enphase IQ8+ 384 W 15 unités 5,8 kW
Enphase IQ8P 480 W 12 unités 5,8 kW



Important note: For three-phase installations, the total system power can be up to 18 kW (6 kW x 3 phases) with a single three-phase Q Relay.





Visual diagnostics with LEDs

The Q Relay incorporates a system of 4 red/green LEDs for easy diagnosis:



  • 🔴 LED L1 (red): Overvoltage or undervoltage detected on phase L1.
  • 🔴 LED L2 (red): Overvoltage or undervoltage detected on phase L2.
  • 🔴 LED L3 (red): Overvoltage or undervoltage detected on phase L3.
  • 🔴 LED F/DC (red): Frequency trip (min f / max f) or DC injection detected.
  • 🟢 strong>All LEDs green: Normal operation, all phases OK





Applications and compatibility

The three-phase Q Relay is designed for Enphase three-phase photovoltaic installations:

  • Three-phase residential installations up to 18 kW
  • Commercial and SME installations with Enphase microinverters
  • IQ7, IQ7+, IQ7X, IQ7A microinverter compatible
  • IQ8M, IQ8+, IQ8P, IQ8MC microinverter compatible
  • Requires Enphase Envoy-S gateway (Standard or Metered)
  • Limited to a maximum of 20 active Q Relays per Enphase system





Compatible Enphase ecosystem

For a complete and optimal Enphase installation, the three-phase Q Relay works with :







    • Envoy-S Standard Gateway: Basic PV production monitoring - see Envoy-S Standard



    • Envoy-S Metered Gateway: Monitoring production + consumption - see Envoy-S Metered



  • Enphase Enlighten application: Real-time monitoring on smartphone/tablet/computer





Installation and commissioning

The three-phase Q Relay must be installed by a certified Enphase installer:



  1. DIN rail mounting: Install the relay in the AC electrical panel on a 35mm DIN rail.
  2. Input connection: Connect the 3 phases + neutral from the main switchboard to the relay input terminals.
  3. Output connection: Connect the relay outputs to the Enphase microinverters (via AC connection box)
  4. Envoy-S connection: Connect the relay to the Envoy-S gateway (PLC connection via mains)
  5. Software configuration: Set up the relay via the Enphase Installer App (number of phases monitored, thresholds, etc.)
  6. Function test: Check diagnostic LEDs and display in Enlighten



⚠️ Important: Installation of an Enphase system with Q Relay requires Enphase certification. Only certified installers can activate the system via the Enphase Installer App.





Benefits of the Enphase 3-phase Q Relay

  • Maximum safety: Four-pole isolation (L1, L2, L3, N) in the event of a mains fault.
  • Guaranteed compliance: Meets strict European mains protection standards
  • Automatic reconnection: No manual intervention required
  • Flexible configuration: 1, 2 or 3 phases depending on installation
  • Visual diagnostics: 4 LEDs for rapid fault identification
  • OTA updates: Firmware updated remotely via Enphase cloud
  • 5-year warranty: Enphase manufacturer coverage
  • Enphase ecosystem: seamless integration with IQ7, IQ8, Envoy-S, Enlighten



Order your three-phase Q Relay for intelligent network protection now!

Q-RELAY-3P-INT

Specific References

UPC
712971131248
EAN13
0712971131248
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