It connects the battery banks (starting + services) when alternator/battery charger are working and it disconnects the banks when the charging system stops.Supports high current loads (e.g., powerful inverters).Ability to connect battery banks in an emergency, with a simple switch control.Very low consumption in ON/OFF due to the bistable system.Meets ISO 8846/SAEJ1171.Deutsch 6-pin DTM male connector.