Secure Power Supply Operation

In case of a grid failure, the secure power supply operation supplies the loads with energy from the battery and the PV system. You can connect a standard socket (230 V) and a standard switch to the inverter. You can connect a load with a maximum of 16 A and 230 V to the secure power supply socket. The load is supplied with energy from the battery and PV system during grid failure. The switch is used to enable and disable secure power supply operation.

The secure power supply operation is not automatically enabled in the event of a grid failure, neither is it automatically disabled once the utility grid is available again. If the utility grid fails, the load must be connected to the socket for secure power supply operation. The supply to the load must be activated manually by switching on the switch to secure power supply operation. The inverter automatically regulates the energy supply of the socket after activating the secure power supply operation. When the utility grid is available again and the loads can be supplied from it, the loads must be connected to the previous supply and the secure power supply operation must be deactivated manually by switching off the switch.

During active secure power supply operation, the inverter is disconnected from the building's main electrical system and does not therefore feed into the utility grid. The loads can only be supplied in secure power supply operation as long as energy can still be provided by the PV modules and/or the battery. If there is insufficient energy available, the secure power supply operation remains active, even if the utility grid is available again. Switching over to supplying the loads from the utility grid is not carried out automatically.