Auto phase switch is designed to supply industrial and household appliance single-phase 220V/50Hz loads from three-phase four-wire mains 3×380+N with the purpose of maintaining uninterrupted power supply of essential single-phase loads and protect them against unallowable voltage variations in the mains.
Depending on voltage presence and voltage quality on phases, the RM-PS63 will automatically select the optimal phase and promptly switch the single phase load supply of any wattage to this phase