The transformerless Fronius Primo and Symo inverters are extremely efficient and reliable. The Primo is a single-phase inverter line designed for residential applications wth a 208/240 volt grid connection. The 3-Phase Symo inverters are available in 208V, 240V and 480V. The Symo is ideal for commercial applications.
Both the Primo and Symo feature the SnapINverter hinge mounting system for quick installation in as little as 15 minutes. The 2014 NEC compliant AFCI, built-in DC disconnect, built-in Wi-Fi and SunSpec Modbus make Fronius inverters the Smart Grid ready inverters that have industry leading features for contractors and homeowners.