1. Driven by a motor, current flows only at the instant of switching, eliminating heat buildup, contact sticking, and coil burnout. Switching is reliable, smooth, noiseless, and minimal impact.

2. Mechanical and electrical interlocks ensure that both circuit breakers cannot be closed simultaneously.

3. Automatic switching under load, with manual switching available via a handle in an emergency.

4. Three stable operating states:

State I: Normally closed, standby open;

State I: Normally open, standby closed;

State II: Normally open, standby open. 5. WQ3 network type: It has all the functions of the intelligent type and also has the following functions:

(1) It can accurately display two-way three-phase voltage, current, power, frequency and switch status;

(2) It allows users to set and change parameters such as "automatic/manual", "Ⅰ/Ⅱ priority power supply", "communication", "conversion delay" and other parameters on site or in the monitoring center;

(3) It has RS232C/485 communication port;

(4) It has a programmable output port and the relay output capacity reaches 10A;

(5) It uses LCD screen Chinese display (can display 10x2 characters);

(6) It can cyclically memorize 40 sets of parameters, and the set parameters will not be lost ten years after power failure;

(7) It has "four remote control" function;

(8) It has multi-unit network control function;

(9) It has strong anti-interference ability and is suitable for use in complex environments with strong electromagnetic interference;

(10) The rated current can reach 6300A;