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About Fronius

Key Points

  • Inverters and data communication solutions for grid-connected PV systems


Key Points

  • Extensive product line, accommodating a wide range of applications.
  • A trusted name in the renewable energy field.
  • High frequency/phase shift architecture maximizes efficiency while reducing weight.

Headquartered in Pettenbach, Austria, Fronius has been a key manufacturer of photovoltaic electronics since 1992, particularly in the engineering and manufacturing of photovoltaic inverters for both grid-connected and independent power supplies. Fronius was founded in 1945, and began manufacturing battery-charging systems shortly thereafter. They made a name for themselves with premium welding technology, especially in the automotive industry. Eventually, technology and engineering standards used in welding applications transferred over to the solar electronics market.

Production facilities have always remained close to home, nestled at the foot of the Alps, in Sattledt, and Weis in northwestern Austria, along with production sites in the Czech Republic and Ukraine. A state-of-the-art facility opened early 2011 in Pettenbach, reaffirming the company's commitment to the European union. Fronius has remained a trusted name in the renewable energy market, offering an extensive line of photovoltaic electronics, built to high quality control standards.

Fronius' IG series of inverters offer residential & commercial grid-tie customers a wide range of products, which reflect the company's proven designs. Their wide input voltage range allows for flexible use of modules in any power and voltage range. These inverters come standard with 3 expansion slots, which allow you to add features like external sensors and remote displays. High-frequency (HF) architecture, and phase shift technology deliver higher reliability and efficiency while reducing size, weight, and installation costs. All Fronius IG series inverters are CSA listed to UL 1741 for the U.S and Canada, and are backed up by standard 10-year warranty with the option for a 5-year extension.

The Fronius IG plus line offers customers more features for larger systems. These inverters provide a lockable, code-compliant DC disconnect with a six circuit, fused string combiner in a separable compartment that stays on the wall if the inverter needs to be serviced. A bus bar is available for bypassing the combiner on higher input currents, and the string combiner can be fused for up to 20 amps per circuit. Fronius IG inverters make a seemingly complex system appear simple and straightforward, maximizing ease-of-use and technological advancement.


Efficient, reliable, high power inverters form the heart of any PV system. In the development of PV inverters, Fronius thought out new technologies, searched for innovative solutions, and have found completely new answers. The result was highly functional grid-tied string inverters, which interact optimally with all solar modules and systems of all types and sizes.

Fronius Inverters

ModelPart No.WattsInput
Subcategory: Grid Tie
Fronius Symo Lite 10.0-3 10kW - 3 Phase 208/240 Inverter293510010000W1000VDC208/240VACThree PhaseCALL
Fronius Symo Lite 10.0-3 10kW - 3 Phase 480 Inverter293511010000W1000VDC480VACThree PhaseCALL
Fronius Symo Lite 12.0-3 12kW - 3 Phase 208/240 Inverter293512012000W600VDC208/240VACThree Phase
Fronius Symo Lite 12.5-3 12.5kW - 3 Phase 480 Inverter293513012500W1000VDC480VACThree PhaseCALL
Fronius Symo Lite 15.0-3 15kW - 3 Phase 480 Inverter293514015000W1000VDC480VACThree PhaseCALL
Fronius Symo Lite 17.5-3 17.5kW - 3 Phase 480 Inverter293515017500W1000VDC480VACThree PhaseCALL
Fronius Symo Lite 22.7-3 22.7kW - 3 Phase 480 Inverter293517022700W1000VDC480VACThree PhaseCALL
Fronius Symo Lite 24.0-3 24kW - 3 Phase 480 Inverter293518024000W1000VDC480VACThree Phase
Fronius Primo 3.8-1 - 3800 Watt 208/240 Inverter29360003800W600VDC208/240VACSingle Phase
Fronius Primo 5.0-1 - 5000 Watt 208/240 Inverter29360105000W600VDC208/240VACSingle Phase
Fronius Primo 6.0-1 - 6000 Watt 208/240 Inverter29360206000W600VDC208/240VACSingle Phase
Fronius Primo 7.6-1 - 7600 Watt 208/240 Inverter29360307600W600VDC208/240VACSingle Phase
Fronius Primo 8.2-1 - 8200 Watt 208/240 Inverter29360408200W600VDC208/240VACSingle Phase
Fronius Primo 10.0-1 - 10,000 Watt 208/240 Inverter293605010000W600VDC208/240VACSingle Phase
Fronius Primo 11.4-1 - 11,400 Watt 208/240 Inverter293606011400W600VDC208/240VACSingle Phase
Fronius Primo 12.5-1 - 12,500 Watt 208/240 Inverter293607012500W600VDC208/240VACSingle Phase
Fronius Primo 15.0-1 - 15,000 Watt 208 Inverter293608015000W600VDC208/240VACSingle Phase


Fronius Accessories make it possible to connect multiple Fronius Inverters, help track electical data and allow other great upgrades to your PV system

Fronius Inverter Accessories

ModelPart No.DescriptionPrice
Fronius Rapid Shutdown Box for Galvo/Primo Single DC String2934020Fronius USA Rapid Shutdown Box DUO for Galvo/Primo Inverters - Single DC String 25A
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Fronius Datamanager 2.0 Card2935190Fronius Datamanager 2.0 Card
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