An Automatic Changeover Switch is an electrical device that allows you to switch between two power sources automatically. It is commonly used to ensure uninterrupted power supply to critical loads, such as servers, medical equipment, or security systems. Uses and Wiring: Press the button to Automatic, the switch will switch to Normal power or reserve power automatically. Press the button to Manual, Then you have to switch the Direction manually. Application: Perfect for off-grid power systems like solar power or generator systems It’s suitable dual power grid with AC 50Hz, rated voltage 220V-240V and rated current up to 63A. When one power system turns off, the switch will automatically connect to an alternative. Output frequency: 50Hz/60Hz Output type: 2pole Output current: 6A-63A Switching Action Time: +/- 3s High reliability and safety Suitable for shift of two-way power, transfer of load equipment and safe isolation Whats in the box: 1 x 63A Automatic 2Pole Dual Power Changeover Switch