Xantrex GT series with integrated AC/DC disconnect switch - SMA-Sunny Boy series with integrated AC/DC disconnect switch and 4 PV string fused combiner - Fronius IG series with a pre-wired SunWize Power Center consisting of an aluminum back panel, NEMA 3R, AC and DC disconnect switches. The Power Center is designed to facilitate easy on-site installation of the inverter. There is an optional digital kWh meter with socket box (Part # 400010). Inverters come with standard 10-year warranties. Fronius offers the option to extend the warranty to 15-years.