AC Utility Grid Connection
Cable size requirements for the String Inverter are dependant on the model:
HY 8.0 - minimum 4mm² - 6.7mm²
HY 10.0 - minimum 2.5mm² - 8.4mm²
The recommended maximum cable length should not exceed 50m as the resistance of the cable will
consume inverter output power and reduce the inverter efficiency.
| Maximum output | Overcurrent protection | RCD protection (if required**) | Minimum cable size* | |
|---|---|---|---|---|
| String Inverter 3.6kW | 16A | C20 | 4mm | |
| String Inverter 5.0kW | 21.7A | C25 or C32 | Type A 30mA | 6mm |
| String Inverter 6.0kW | 26A | C32 | 6mm |
*This is the minimum size cable, large CSA may be required – Refer to BS7671
**See separate RCD declaration
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