GRID-TIED INVERTERS FOR PHOTOVOLTAIC SYSTEMS Light Weight At 26 lbs, the FRONIUS IG inverters are the lightest grid-connected inverters making them easy-to-install. Flexible The wide voltage range of 150-500 V allows you to use different types of modules and system configuration possibilities. Lower Cost Integrated DC / AC disconnects reduce installation time and complexity. LCD Display User-friendly and comes standard with every FRONIUS IG; tracks more than 20 critical system performance parameters. Plug-and-Play Expansion slots in the inverter allow you to easily upgrade the inverter with data communication options.