Features FAST SAFETY SWITCHING: Automatic switch with load safety switching, maximum switching speed < 2S, under regular circumstances can achieve the use of part of the electrical appliances without power DUAL MODE: This automatic switch not only supports automatic mode, but can also be operated by means of a manual button for easy operation and reliable performance. GOOD MATERIAL: The use of flame retardant PC material as the shell, good insulation, high temperature resistance and anti aging, the use of silver contacts, brass motor coil can greatly improve the conductivity and service life. EASY INSTALLATION: The ATS of the changeover switch is compact, reliable in transmission, easy to install and maintain, and can be installed vertically or horizontally. WIDE APPLICATION: The switch switch is mainly used in hospitals, shops, banks, chemical industry, metallurgy, high rise buildings, military installations and other important situations where power cuts are not allowed. Specification: Item Type: Dual Power Automatic Transfer Switch Material: Flame retardant PC, brass, PCB, silver Current: 100A Operating Frequency: 50Hz Rated Voltage: AC400V Operating Voltage: AC380V Display Function: Indicator light display Operation Mode: Automatic/Manual ATS Level: CB level Conversion Time: ≤2s Use Level: AC-33iB Switching Mode: Self throwing and self repeating Mechanical Life: Automatic: 3000 times; Manual: 1500 times Conformity: IEC947-6-1GB14048.11 Package List:1 x Dual Power Automatic Transfer Switch  1 x Instruction Note:Installation environment conditions:1. The maximum surrounding temperature should not exceed 40℃, the minimum temperature should not be lower than ‑5℃, and the average temperature in 24 hours should not be higher than 35℃2. The altitude of the installation site should not be higher than 2000m3. When the maximum temperature reaches 40℃, the relative humidity at the installation site should not exceed 50%; when the temperature is a minimum of ‑5℃, the relative humidity is higher, e.g. at 25℃, the relative humidity is 90%. Due to temperature changes, special measures should be taken to deal with the occasional condensation on the product surface4. Low level of pollution, no serious vibrations and shocks, no corrosive environment, no serious dust, no conductive particles and explosive hazardous substances, no strong electromagnetic interference Package List 1 x Dual Power Automatic Transfer Switch 1 x Instruction