Fronius Backup Controller

Automatically switch to Full Backup mode

The Fronius Backup Controller is a switching unit that enables automatic transition to Full Backup mode. In the event of a power failure, it automatically switches to backup power operation and back to parallel grid operation as soon as the grid is available again. This solution ensures that the entire household is always supplied with electricity as long as there is enough power available from the PV system or storage - even when nobody is at home.

As a space-saving solution, the Fronius Backup Controller* can be installed quickly and easily on a top-hat rail in the control cabinet. This minimizes installation effort and costs, as an additional switchover box is no longer required.

Advantages

/ Automatic solution for maximum security

/ Supplies the entire household even when absent

/ Automatic return to normal operation

/ Easy and space-saving installation in the control cabinet

* Depending on country-specific certification and availability

Product details

Technical Data

Output Data

Total harmonic distortion	<3% @Pnom (230/400VAC 50Hz)

General Data

Certificates and compliance with standards	IEC 60947-6-1
Compatible inverters	Symo GEN24 Plus
Nominal voltage	400/230V
Nominal Power	24 kVA
Rated current	35 A
Mains Frequency	50Hz
Grid types	TN-C-S, TN-S
Width	144 mm
Height	100 mm
Depth	66 mm
Weight incl. packaging	0,97 kg
Protection class	IP 20
Min. permissible ambient temperature	-20 °C
Max. permissible ambient temperature	60 °C
Permitted humidity	50 %
Maximum sea level	2000 m
Interference emission class	B
Min. cable cross-section (neutral conductor to smart meter)	1 mm²
Min. cable cross-section (phase/neutral conductor)	2,5 mm²
Max. cable cross-section (phase/neutral conductor)	10 mm²
Min. cable cross-section (data communication)	0,14 mm²
Max. cable cross-section (data communication)	1,5 mm²
FRT capability	Yes
Mounting type	DIN top hat rail 35 mm
Pitch units top-hat DIN rail	8 pitch units according to DIN 43880