Fronius Primo
The Fronius Primo is a transformerless single-phase inverter with power categories ranging from 3.0 to 8.2kW, making it an ideal option for a residential household inverter. It includes the following advanced features.

Fronius Symo
The Fronius Symo is a transformerless three-phase inverter with power categories ranging from 3.0 to 20.0kW. This power range enables the Fronius Symo inverter to be applicable to the majority of residential solar systems. It includes the following advanced features.

Fronius Eco
The Fronius Eco is a transformerless three-phase inverter designed for large-scale installations. The commercially used inverter comes in 25 or 27kW power categories. The Fronius Eco inverter holds an Ingress Protection Rating (IP Rating) of 66, this means it’s dust-tight and able to withstand heavy seas or powerful jets of water. Both power categories hold an efficiency rating of over 98%, and due to the integrated double fuse holders and optional overvoltage protection, string collection boxes aren’t required.

It includes the following advanced features.
All of Fronius’ inverters are come with CE certification. Fronius Inverter Efficiency Residential inverter efficiency standards are generally 95 to 98 percent, the Fronius Primo & Symo sit at or above 98% efficiency placing them towards the top of the industry in residential inverter efficiency. Inverter efficiency technology can be seen in the Fronius Galvo. This inverter utilises an automatic high-frequency (HF) transformer with three efficiency peaks. This enables a higher percentage yield as the HF transformer is more efficient across the entire input voltage range.