Description
Scope of application: applicable to ac 50HZ/60HZ, rated voltage 400V, rated current under 63A three-phase four-wire (or one-phase first-line) dual power grid.
When one power supply fails (testing only the normal phase A voltage and the standby phase A voltage, and only the loss voltage or loss phase), it will automatically connect one or more load circuits from one power supply to another to ensure the normal supply of the load circuit.
The switch is mainly used to detect whether the power supply is normal or standby.
When the power supply is normal, the standby power supply works simultaneously to ensure the continuity, reliability and safety of the power supply.
Installation type :3 vertical installation or 4 horizontal installation
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