Solis-ATR-6K autotransformer is designed to be used with the Solis energy storage inverter RHI-1P(5-10)K-HVES-5G. The ATR can support 120VAC backup loads with up to 7kW of output power. An integrated bypass switch ensures a high level of system protection. Quick installation and easy maintenance make this device ideal for residential PV energy storage systems.