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Fronius Primo - The flexible solution for every home

The Fronius Primo series stands for reliability and efficiency in energy conversion. With power classes from 3.0 to 8.2 kW, this inverter series is the perfect choice for private solar systems. State-of-the-art technologies such as the innovative SnapINverter design make installation and maintenance child's play.

Benefit from flexible application options and integration into a wide range of PV systems. The Primo series offers an ideal combination of easy handling and high performance.

Discover the other Fronius series such as Primo Gen24 and Symo for maximum versatility.
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Fronius Primo - performance and versatility combined

Technological excellence for private solar systems

The Fronius Primo series is specially tailored to the needs of private households. With a wide power range from 3.0 to 8.2 kW, it covers a variety of requirements. SnapINverter technology simplifies installation and guarantees a long service life.

State-of-the-art communication technologies such as WLAN and Ethernet ensure easy connection to energy management systems. The Primo inverter enables intelligent monitoring and control to maximize the energy efficiency of your system.

Technical highlights of the Fronius Primo series

  • Flexible power classes: From 3.0 to 8.2 kW for every system size
  • Easy installation: SnapINverter design for quick and safe installation
  • Energy monitoring: Integrated interfaces such as WLAN, Ethernet and Modbus TCP for smart control
  • Durability: IP 65 protection rating and high-quality materials ensure reliability even under demanding conditions
  • Future-proof: Compatible with storage systems and Smart Grid Ready
  • High efficiency: Maximum efficiencies of up to 98.1%

Primo inverters

Primo 3.0-1:

  • Output: 3.0 kW
  • Max. Efficiency: 98.0 %
  • Weight: 21.5 kg
  • Input voltage range: 80 - 1000 V
  • Special feature: Compact design, ideal for smaller installations.

Primo 3.5-1:

  • Power: 3.5 kW
  • Max. Efficiency: 98.0 %
  • Weight: 21.5 kg
  • Input voltage range: 80 - 1000 V

Primo 3.6-1:

  • Power: 3.6 kW
  • Max. Efficiency: 98.0 %
  • Weight: 21.5 kg
  • Input voltage range: 80 - 1000 V
  • Special feature: Improved European efficiency of 96.8 %.

Primo 4.0-1:

  • Power: 4.0 kW
  • Max. Efficiency: 98.1 %
  • Weight: 21.8 kg
  • Input voltage range: 80 - 1000 V

Primo 4.6-1:

  • Power: 4.6 kW
  • Max. Efficiency: 98.1 %
  • Weight: 21.8 kg
  • Input voltage range: 80 - 1000 V

Primo 5.0-1:

  • Power: 5.0 kW
  • Max. Efficiency: 98.1 %
  • Weight: 21.8 kg
  • Input voltage range: 80 - 1000 V

Primo 5.0-1 OFF:

  • Power: 5.0 kW (reduced apparent power: 4.6 kW)
  • Max. Efficiency: 98.1 %
  • Weight: 21.8 kg
  • Input voltage range: 80 - 1000 V
  • Special feature: Specially optimized for Australian standards.

Primo 6.0-1:

  • Power: 6.0 kW
  • Max. Efficiency: 98.1 %
  • Weight: 22.0 kg
  • Input voltage range: 80 - 1000 V

Primo 8.2-1:

  • Power: 8.2 kW
  • Max. Efficiency: 98.1 %
  • Weight: 22.0 kg
  • Input voltage range: 80 - 1000 V
  • Special feature: High power capacity for larger PV systems.

Sustainability and innovation

The Fronius Primo series not only offers high efficiency, but also sustainable solutions for the future of energy. With an innovative SuperFlex design and comprehensive service, Fronius is setting standards in the PV industry. In addition, the low night-time consumption of < 1 W minimizes energy requirements.

Discover the other Fronius series such as Symo Gen24 and Tauro, which offer maximum versatility.

Learn more about the manufacturer Fronius.

Frequently asked questions

  • How long are Fronius warranties?
    The manufacturer's warranty is 2, 5 or 10 years, depending on the product series. For more detailed information on the warranty period, please refer to the data sheet provided with the respective product.
  • What is Fronius' production volume?
    With a production volume of around 32,000 inverters per month in 2022, Fronius aims to increase this by more than 65% to over 52,000 inverters per month by the end of 2023. Thus, investments in the expansion of operations, compared to 2022 at 187 million euros, are also to be increased to more than 230 million euros. 
  • Where does Fronius produce?
    The company has been producing in its own production facility in Austria since its foundation. 
  • Where is the company located?
    Fronius now operates on five continents worldwide with its 37 subsidiaries, although the main concentration of locations is still in Europe. In addition, the sales and service partners are represented in over 60 countries on all continents, so that optimum support can be guaranteed around the globe. 
  • What products does Fronius specialize in?
    Fronius specializes within the photovoltaic industry in the production of inverters and electricity meters. 
  • When was Fronius founded and what are they known for?
    In 1945, the Fronius company was founded by Günter Fronius, a trained electrical engineer, in Pettenbach, Austria, as a one-man operation for radio and electrical maintenance work. Fronius' fame continued to grow through the invention of simple battery chargers, and welding transformers have been part of the company's portfolio since 1950. Over the years, the company continued to expand, entering the solar business in the 1990s. Now run by the 3rd generation of the Fronius family, the headquarters are still in Pettenbach, Austria, whose mainstays today are solar energy, welding and battery charging technology.