Features 2 Control Modes: Easily switch between automatic and manual control, providing flexibility and simplicity for your power management needs Main Functionality: Seamlessly connects to an alternative power source during outages, ensuring uninterrupted power supply to your essential load circuits High Performance Speed: Experience rapid switching with a maximum speed of less than 2 seconds, allowing for efficient power transfer and minimal downtime Multiple Protection Features: Enjoy peace of mind with built-in protections against short circuits, overloads, phase loss, and undervoltage, ensuring safe and reliable Easy Installation Options: Compact design allows for versatile installation, whether vertically or horizontally, simplifying setup and saving valuable space Features: 1、2 CONTROL MODES: The transfer switch not only supports automatic mode, but also can be operated through manual buttons, simple to operate. 2、MAIN FUNCTION: When one power supply fails, the switch will automatically connect to the other power supply to ensure normal power supply to the load circuit. 3、HIGH PERFORMANCE: The transfer switch has large load power, fast switching speed, maximum switching speed is less than 2S. 4、MULTIPLE PROTECTION: This changeover supports multiple protection functions, including short circuit, overload, phase loss, and undervoltage protection, very safe and reliable to use. 5、EASY INSTALLATION: This ATS has compact structure, adopts screw installation, can be installed vertically or horizontally. Specification: Item Type: Dual Power Automatic Transfer Switch Material: PC Flame Retardant, Brass, PCB, Silver Model: GFQ3 125 4P Current: 125A Operating Frequency: 50Hz Rated Voltage: AC400V Working Voltage: AC380V Display Function: Indicator light display Mode: Automatic, manual ATS Level: CB level Conversion Time: ≤2s Usage Level: AC 33iB Conversion Method: Automatic switching and automatic recovery Mechanical Life: Automatic: 3000 times, Manual: 1500 times Compliance Standard: IEC947-6-1GB14048.11 Working Principle: The power supply signal of the dual power supply controller and drive mechanism of this series depends on the A phase and N line of the input port of the common switch or standby switch. In the automatic state of the two way power supply, when the incoming phase A and N common switch voltage is normal, regardless of whether the voltage of the public power supply B C and the standby switch a b c and N is normal, the public switch will be closed first, at the same time, the power indicator and the public shutdown indicator light up. When the incoming public switch phase A and line N have no vol Package List 1 x Dual Power Automatic Transfer Switch 1 x User Manual