Fronius Inverter

3-phase solar inverter reliability The Fronius IG Plus Advanced 11.4-3 Delta inverter is the largest three-phase inverter that supports 208/240VAC with NEC 2011 compliant AFCI protection in the IG Plus Advanced inverter family. This solar grid-tie inverter is very efficient at 96.2%. It is best suited for larger PV applications such as solar systems for commercial buildings that require NEC 2011 compliance. Designed for indoor and outdoor installations. All Fronius IG Plus Advanced inverters have a robust, well designed aluminum housing. UV resistance and corrosion protection enable them to be used either indoors or outdoors. Fronius is proud to be one of the only inverters tested and approved to operate at 122° F.