JGQ3 series dual-power automatic transfer switch (ATSE), is a set of switch and logic control in one, without the need for external controller, truly realize the mechanical and electrical integration of automatic transfer switch, it is suitable for AC 50Hz, rated voltage to 440V, the agreed heating current of 100A in the industrial and enterprise power distribution equipment, with voltage detection, frequency detection, communication interface, electrical and mechanical interlock and other functions, can achieve fully automatic, remote control, forced “0”, emergency manual operation, It is widely used in the automatic conversion of the main current and the standby power supply system or the automatic conversion and safety isolation of two load equipment. The switch is managed by the control circuit board issued by various logic commands, and the motor drives the operating mechanism of the main part of the switch, quickly connects the breaking circuit or converts the electrical appliance, and realizes safety isolation through the obvious visible state.

JGQ1 系列双电源自动转换开关(以下简称转换开关）适用于交流 50Hz 或 60Hz、额定工作电压 400V 以下的双回路供电系统。可根据需要在两个电源之间进行选择性转换。该产品具有短路、过载、欠压、失压等功能，还具有防火、双分、输出合闸信号等功能。

特别适用于有消防要求的办公楼、商场、银行、车站、医院和高层建筑的照明线路安装和使用。