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Businesses and non-Italian private customers: 22% VAT applies. The 10% reduced rate is reserved for private individuals resident in Italy — learn more.
Foreign businesses entitled to 0% VAT: email info@litio.store.
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Italy: free over €150; €13 for smaller orders.
European Union: free from €350; €60 for smaller orders.
Enphase External Relay Three-phase for IQ Series - Phase Coupler
🚚 Fast delivery in 10-20 days.
Technical specifications
| Brand | Enphase |
| Model | Q Relay 3PH |
| Type | Energy management |
| Function | External relay + phase coupler for three-phase systems |
| Dimensions (W×H×D) | 100 × 110 × 70 mm |
| Weight | 0.78 kg |
Product information
The Enphase external relay for the IQ Series (three-phase version) is required to connect Enphase microinverters in a three-phase solar system. Besides acting as a relay, it also works as a phase coupler, enabling communication between the system's three phases.
The device is installed in the PV box or the meter box on the solar side. Note: in the three-phase version, the grid connects at the bottom and the PV system at the top (it is the reverse in the single-phase variant).
| 🔌 For three-phase systems | ⚙️ Phase coupler | 📦 PV box installation |