The XLQ3-63 dual power automatic switch (switching device) is suitable for dual power supply systems with AC 50HZ and rated working voltage of 380V and below. It can be operated automatically or manually to switch between the common power supply and the backup power supply. This switch is mainly used in important occasions where power outages are not allowed, such as hospitals, shops, banks, metallurgy, high-rise buildings, military facilities, etc.
Product Structure Features:
1. There is a reliable mechanical interlocking device and electrical interlocking protection between the two circuit breakers, completely eliminating the possibility of both circuit breakers closing simultaneously.
2. The intelligent controller adopts a microcontroller as the control core, with simple hardware, powerful functions, easy expansion, and high reliability.
3. It has short-circuit and overload protection functions, automatic switching functions for overvoltage, undervoltage, and phase loss, and intelligent alarm functions.
4. The automatic conversion parameters can be freely set externally.
5. It has intelligent protection function for motor operation.
6. This device is equipped with a fire control circuit. When the fire control center sends a control signal to the intelligent controller, both circuit breakers enter the open state.
Electrical grade: CB grade

Normal working conditions:
The space temperature for installation environment is -20-40 ℃.
● Altitude: The altitude of the installation site shall not exceed 2000m.
Pollution level: The pollution level is 3.