Application automatic transfer device:It’s suitable for 3 phases 4 wires (or 1 phase 1 wire) dual power grid with AC 60Hz, rated voltage 400V and rated current up to 63A.
When one power goes wrong (only test normal Phase A voltage and reserve Phase A voltage, only test loss voltage or loss phase),it will automatic connect one or several load circuits from one power to the other power automatically, to ensure normal power supply of load circuits.
Normal conditions for operation and installation: Environmental Temperature Condition:-5~+40°C
Installation site is not more than 2000 meters above sea level.
Pollution Level: Grade
Installation Category: 3 Vertical installation or horizontal installation 4. Main parameter.