The network consists of a mother controller, dual power controller, and automatic transfer switch

Product Overview：
The WQ3 automatic transfer switch controller is an intelligent dual power switching system that integrates programmability, automated measurement, LCD display, digital communication, and more. After being matched with low-voltage air circuit breakers, it is particularly suitable for automatic switching and protection of low-voltage two incoming lines.

Technical Specifications：

WQ3
Main functions	Two way power supply selection, precise measurement, intelligent control, anomaly detection, oil engine startup, and four remote functions
display	LCD display
language	Chinese/English
Working Voltage	Taken from one or two A and N phase voltages, as long as one of them is powered, it can work, and the single-phase voltage is greater than 180V. (This system requires N)
Working Voltage	DC power supply (optional), voltage range DC 9-35 V (usually from the starting battery of the oil engine).
Input three-phase voltage	0-270V (single-phase) 0-460V (three-phase) 50Hz
Input three-phase current	0-5A (rated)
AC frequency	50Hz
Programmable output port	two
Programmable input port	not supported
communication interface	RS232/RS485 isolation interface, MODBUS protocol
Dimensions (mm)	184mm×137mm×90mm(L×W×H)
Hole size (mm)	175mm×131mm
working environment	Environmental temperature: (-5~+40) ℃; The average temperature within 24 hours shall not exceed+35 ℃
weight	1.0kg
Start the oil engine	support
Fire reset	support
Automatic manual undervoltage, voltage loss, delay, phase loss conversion	support
Current and power display	support
overcurrent protection	support
Panel lock	not supported
Primary/Secondary/No Primary	support
Customize the startup interface	support
Forced disconnection	support
history	support

Download：
WQ3 Manual WQ3 Instruction Manual (in English) WQ3 Communication Protocol WQ3 Testing Software Wv21