Cable and connectors

Here you will find all the connectors and cabling you need for photovoltaic installations: solar cables (by the metre), extension cables, MC4 connectors, branch cables and earth cables for a clean, reliable and durable connection.

To make the right choice, match the cross-section (e.g. 2x4 / 2x6 / 2x10 mm²) to the length and current, select the length (extensions) and connectors according to your setup (string, extension, branch).

To power 230V devices from batteries or for PV inverters, see

230V converters
Inverters & converters

Choose in 30 seconds

  • I am connecting my panels: choose a solar cable (e.g. 2x4 / 2x6 / 2x10 mm²) with MC4 connectors.
  • I need to extend the cable: choose an MC4 extension cable of the right length.
  • I am making a branch connection: choose a double or triple MC4 connector depending on the number of branches.
  • I need to secure the installation: add the appropriate earth cable (4 / 6 / 16 mm²).

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FAQ - Cables & connectors

1. Which solar cable cross-section should I choose (2x4, 2x6, 2x10 mm²)? +
The cross-section depends on current and especially on cable length: the longer it is, the more you must limit voltage drop by increasing the cross-section. Also choose according to your setup (string, extension, branch connection).
2. How can I extend a solar panel cable? +
Use an MC4 extension cable of the right length (male/female depending on the need) for a clean, compatible extension.
3. What are MC4 connectors used for? +
MC4 connectors provide a reliable, standardized connection between panels, extension leads and branch connections in PV systems.
4. When should I use a double or triple MC4 connector? +
To make a branch connection (connect several branches) depending on how many strings you need to combine.
5. Why add an earthing (ground) cable? +
Earthing improves safety and helps ensure a compliant installation: choose the cross-section (4/6/16 mm²) according to your needs.