Freedom HF inverters are designed for demanding marine and RV conditions. The Inverter/Charger includes an automatic transfer switch and a detachable digital remote control panel display that provides precise system information and can be mounted wherever you require the information. It’s an automatic three-stage battery charger. Designed to be hardwired using a terminal strip, or by connecting AC through GFCI receptacles (included). Built-in 30-ampere relay to automatically transfer between inverter power and incoming AC utility power. It Features Battery over-voltage and under-voltage protection, over-temperature shutdown, automatic overload protection, short-circuit protection, and ground-fault protection.