Feature:1. AUTOMATIC TRANSFER FUNCTION: When the main power supply fail or the voltage is abnormal, the ATS automatically transfer the load from the main power supply to the standby power supply to ensure uninterrupted power supply. Priority is L1>L2>L3. ATS ensure smooth switching between the primary and backup power supplies, preventing power fluctuations or interference. After the main power supply recovers, the ATS automatically transfer the load back to the main power supply to ensure a seamless system restart2. FLEXIBLE SETTINGS: This three phase automatic transfer switch enables you to freely prioritize mains power, generator, and inverter. You can set the voltage threshold for switching, so automatically switch when there is under voltage or over voltage. The switch speed can also be set within the range of 1s to 600s, with a default of 30s3. ADJUSTABLE PARAMETERS: The transfer time, reset time, over under voltage protection, and overcurrent protection parameters are all adjustable within the specified range4. FLAME RETARDANT MATERIAL: The shell of the automatic transfer switch is made of high fireproof PC material, which is not easy to burn and ensure safe use. Has the characteristics of sensitive to operate, accurate measurement and minimal heat generation. The beautiful design show the exquisite craftsmanship5. WIDE RANGE OF APPLICATIONS: ATS is widely used in power system that require continuous and stable power supply, including commercial and industrial buildings, medical facilities, data centers, and communication base stationsSpecification:Item Type: Automatic Transfer SwitchModel: CHLT-GX3Material: Flame retardant PCPower Terminals: N, L1, L2, L3Auto Reclosing Delay(Ton): 1-600sReturn Priority Stage Delay: 1-600sSwitch Delay To Reserve Phase: <0.2sVoltage Hysteresis: 5VOvervoltage Trip Delay: 0.1s; ≥350V: 0.02sUndervoltage Trip Delay: 0.1s; ≥350V: 0.02sVoltage Accuracy: <1%Maximum Operating Phase Voltage: 350VRated Operating Current: 63AMaximum Operating Current: 80APollution Degree: 3Altitude: ≤2000mOperating Temperature: -25℃~+50℃Relative Humidity: ≤50% at 40℃(non condensing)Wire Size: 0.5mm²-1mm²Installation: 35mm standard mounting rail.Package List:1 x Automatic Transfer Switch1 x User Manual