DC Cable Sizing Alert — Use appropriate cable dimensions

What does DC Cable Sizing mean?

The DC cables and plug connectors used in the system must meet specific size and temperature requirements to ensure safe and efficient operation.

• Using undersized DC cables.
• Using plug connectors not rated for the operating temperature.
• Cables not meeting minimum size requirements (e.g., 4 mm²).

Click steps to track your progress.

1. 1

   Use recommended cable size of 4 – 6 mm² for plug connectors.

2. 2

   Ensure cables have an operating temperature range of -40 to +120°C.

3. 3

   Verify that module DC extension leads use cable of minimum 4 mm².

4. 4

   Check that wiring from roof isolator to inverter isolator is minimum 4 mm².

5. 5

   Ensure all wiring is double insulated Solar DC type cable.