Fronius PV-4050.221 Backup Switch
Fronius Backup Switch 1P/3P-63A
OPERATING INSTRUCTION
EN: WARNING!
Incorrect operation or poorly executed work can cause serious injury or damage. Installation and commissioning must be carried out by trained personnel according to the nationally applicable standards and guidelines. Before working with the device, ensure that you have read and understood all the documents printed and provided in hard copy and online. When PV modules are exposed to light, they supply voltage to the inverter. This document does not describe all possible system configurations.
- Detailed, country-specific warranty terms are available at: www.fronius.com/solar/warranty
Warning signs explanation
General warning sign
Electricity hazard
Switching OFF
Mounting
Preparing for installation
Option: 1P separation
Option: 3P separation
Connecting the data communication
Mounting the protective cover
Commissioning
User interface configuration
- Open user interface of the inverter
- Navigate to Device Configuration > Fun- functions and I/Os
- Activate Backup Power
- Select Full Backup under Backup PoPowerode
Testing the backup power function
- https://www.fronius.com/en/solar-energy/installers-partners/downloads
- Search for: „42,0426,0365“
Circuit diagrams
- 1-pin separpin separaationtion
- 3-pin separpin separaationtion
Documents / Resources
 | Fronius PV-4050.221 Backup Switch [pdf] Instruction Manual PV-4050.221, 42, 0410, 2974, PV-4050.221 Backup Switch, PV-4050.221, Backup Switch, Switch |