DEWIN Automatic Transfer Switch, 4P 63A 400V ATS Dual Power Switch Electric Selector Rail Mount

【High performance】: Automatic transfer switch is powered by an exciter electromagnet with extremely high switching speed, which achieves fast switching in the millisecond range and effectively solving the problems caused by power outages. 【Indicator light】: Transfer switch is equipped with power on indicators for general power supply, emergency power supply and load power supply, and the switch status is clear at a glance. 【Easy to use】: Modular structure design, incoming lines on the same side, convenient wiring, compact structure, small size, easy installation, supports 35mm installation, and can be used in household distribution boxes. 【ATS Automatic Transfer Switch】: Automatic transfer switch is equipped with an arc extinguishing system inside, which can quickly cool and extinguish the arc. 【High Quality】: The automatic transfer switch features a flame retardant shell, can withstand extreme environments, is highly adaptable and works reliably.