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

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.
|
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 |
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