Table of contents Safety Instructions Safety rules Explanation of Safety Instructions General Environmental conditions Qualified personnel Copyright General information General information Intended use Foreseeable misuse Information on the device Scope of supply Explanation of symbols Positioning Compatible devices Operating controls and connections Switch positions of the Backup Switch Connection area Installation and Startup...
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Maintenance Disposal Fronius manufacturer's warranty Circuit Diagrams Manual switch to backup power 1-pin separation, e.g., Australia Circuit diagram Manual switch to backup power 3-pin separation, e.g., Austria Circuit diagram...
Safety rules Explanation of DANGER! Safety Instruc- tions Indicates an immediate danger. ▶ Death or serious injury may result if appropriate precautions are not taken. WARNING! Indicates a possibly dangerous situation. ▶ Death or serious injury may result if appropriate precautions are not taken. CAUTION! Indicates a situation where damage or injury could occur.
Any safety devices that are not functioning properly must be repaired by an au- thorized specialist before the device is switched on. Never bypass or disable protection devices. For the location of the safety and danger notices on the device, refer to the sec- tion headed “General”...
Fronius Backup Switch enables manual switching to the backup power supply. As soon as the public grid is stable again, the Fronius Backup Switch can be used to switch manually back to the power supply from the public grid. The Fronius Backup Switch can only be used in systems equipped with a battery storage sys- tem.
C UL US LISTED marking – confirms compliance with applicable standards for Canada and the USA. IMPORTANT! NO power categories of the US versions of the Fronius product series "Primo GEN24 X.X 208-240 (Plus) (SC)" are compatible with the Fronius Backup Switch. Scope of supply 1 pc Fronius Backup Switch 2 pcs protective cover incl.
Loads in the system e.g. washing machine, lights, television, etc. Positioning The Fronius Backup Switch must be installed at the following position in the sys- tem. Full Backup Compatible Compatible inverters...
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Fronius Smart Meter TS 5kA-3 Fronius Smart Meter TS 65A-3 Fronius Smart Meter TS 100A-1 Details on how to connect a Fronius Smart Meter can be found in the respective operating instructions. To download the Smart Meter operating instructions, either click on the link Smart Meter operating instructions or visit the page fronius.com/en/solar-en-...
Operating controls and connections Switch positions The backup switch has three switch of the Backup positions: Switch Grid operation The power is supplied by the public grid. 0-position (de-energized) The power supply is safely dis- connected from the public grid or from the backup power sup- ply.
Requirements for connecting the Backup Switch Protective cir- For safe operation of the Fronius Backup Switch, the following components must cuit be installed in the switch cabinet: Upstream overcurrent protection according to the information in the chapter Technical data on page 35.
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Load disconnect- Load disconnect- Auxiliary con- or 63 A or 20 A tact switch Tightening torque 2 - 4 Nm 0.8 - 1.7 Nm 0.8 - 1.4 Nm Conductors per ter- minal...
Preparing for the installation Safety WARNING! Danger due to short circuits resulting from foreign bodies in the connection area. An electric shock can lead to serious injury or death. ▶ Keep foreign objects away from the connection area or remove them if ne- cessary.
Switch off the battery connected to the inverter. Wait for the capacitors of the inverter to discharge (2 minutes). Installation The Fronius Backup Switch can be mounted on a 35 mm DIN rail. Housing dimensions according to DIN 4388: 7.2 TE (horizontal pitch) with left...
Disassembly of Before connecting the cables, the housing cover must be removed. the switch and the housing cov- Set the switch to position "0". Push the switch lock down. ü The switch is now unlocked. Remove the screw. The switch and housing cover can ü...
1-pin installation Connecting the WARNING! Backup Switch 1-pin to the pub- Danger from loose and/or incorrectly clamped single conductors in the termin- lic grid This can result in severe personal injury and damage to property. ▶ Check that the single conductors are secure in the terminal. ▶...
Connecting load WARNING! 1-pin in the backup power Danger from loose and/or incorrectly clamped single conductors in the termin- circuit to the Backup Switch This can result in severe personal injury and damage to property. ▶ Check that the single conductors are secure in the terminal. ▶...
3-pin installation Connecting the WARNING! Backup Switch 3-pin to the pub- Danger from loose and/or incorrectly clamped single conductors in the termin- lic grid This can result in severe personal injury and damage to property. ▶ Check that the single conductors are secure in the terminal. ▶...
Connecting load WARNING! 3-pin in the backup power Danger from loose and/or incorrectly clamped single conductors in the termin- circuit to the Backup Switch This can result in severe personal injury and damage to property. ▶ Check that the single conductors are secure in the terminal. ▶...
WSD IN+ TS 5kA-3 TS 100A-1 Wire the Fronius Smart Meter IP via Modbus so that the signal can be inter- rupted. The Fronius Smart Meter IP must not be connected to the network. Description of Feedback switch in backup power position (IN6/IN7)
Mounting the protective cover Mounting the WARNING! protective cov- Danger due to electrical voltage from missing or incorrectly fitted protective covers. Electric shocks can be fatal and/or cause serious property damage. ▶ Fit the protective covers immediately after installing the live cables ▶...
Commissioning Putting the PV Switch on the battery connected to system into op- the inverter. eration Set the DC disconnector to the "on" switch position. Turn on the automatic circuit breaker. General IMPORTANT! Settings in the "Device configuration" → "Functions and I/Os" menu item may only be implemented by staff trained to do so! The service password must be entered for the...
During ongoing operation (recommendation: at least once a year) For test mode, a battery charge of min. 30% is recommended. A description on how to run test mode can be found in the backup power check- list (https://www.fronius.com/en/search-page, item number: 42,0426,0365).
Technical data Technical data Load dis- Load dis- Auxiliary connector connector contact Technical data 63 A 20 A switch Thermal rated operating current open I 63 A 20 A 10 A encapsulated I 63 A 20 A 690 V 690 V 690 V Rated insulation voltage U Breaking capacity I...
Service, warranty terms and conditions, and dis- posal Maintenance Maintenance and service work may only be carried out by Fronius-trained service technicians. Disposal Waste electrical and electronic equipment must be collected separately and re- cycled in an environmentally sound manner in accordance with the European Dir- ective and national law.
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