Backup function

If a battery is connected to the inverter, the inverter provides the option of continuing to supply the house grid with energy using the PV and battery should the mains supply fail.

For this purpose, a manual or automatic backup box must be installed in the house grid at the grid connection point.

As a manual variant, KOSTAL provides the KOSTAL BackUp Switch (three-phase) and the KOSTAL BackUp Switch MP (single-phase), which disconnects the public grid from the house grid in backup mode.

Automatic backup boxes are offered as accessories by other suppliers.

You will find a list of approved KOSTAL Solar Electric accessories on our website in the download area for the product.