FRONIUS Fronius Backup Controller 3P-35A – 4,240,047,CK

The Fronius Backup Controller 3P-35A ensures reliable switching, enabling automatic transition to full backup mode in the event of a grid failure. In the event of a power outage, it automatically switches to emergency power operation and back to grid-parallel operation as soon as the grid is available. This solution ensures that the entire household is always safely supplied with power, even when no one is at home.