Feature 1 Advanced Design: Double row composite contact, transverse pull structure, micro motor advanced energy storage and microelectronic control technology are adopted to basically realize 0 arc crossing. 2 4 Operation Functions: This switch has 4 operation functions, including emergency manual operation, electric remote control operation, emergency disconnection operation under automatic control, and automatic control operation. 3 Mechanical Interlock Device: The load isolation actuating switch is equipped with mechanical interlock device to ensure the reliable operation of main and standby power supplies without mutual interference. 4 Safe to Use: This switch has clear switch position indication, padlock and other functions to achieve safe isolation between power supply and load. And the switch supports multi protection, including short circuit protection, etc. 5 Wide Application: The switch can be used in homes and public places, especially in office buildings and public places that need fire protection.Item Type: Dual Power Automatic Transfer SwitchMaterial: PCRated Working Voltage: AC400VControl Voltage: 220VRated Isolation Voltage Ui: 1000VRated Impulse Withstand Voltage Uimp: 8KVRated Short Time Withstand Voltage: 9kAUsage Category: AC 33BRated Production Capacity: 10IeRated Breaking Capacity: 8IeRated Power: 50HZGrade: pcWorking Temperature: - 20 to 45 (24h average value shall not exceed 35 )Operating Humidity: The average humidity at 40 shall not exceed 50%, and no condensation is allowed Package List1 x Dual Power Automatic Transfer Switch1 x Handle 2 x Key 1 x Manual 12 x Bolt 12 x Nut Note1. The left and right mounting brackets of the switch must be fixed on the same flat plane. The size of the mounting hole should be adjusted according to the actual situation. It is strictly prohibited to use the wrong size of the opening to forcibly install the switch, which will lead to the internal deformation of the switch, or even direct damage to the switch.2. It is recommended to use busbar for the installation of switches above 2000A. If the cable installation will increase the stress of the installation bracket, please add effective reinforcement measures.3. Vibration and gas: in its use environment, there should be no strong vibration or impact, nor should there be harmful gases that corrode metals and damage insulation materials.4. Surrounding materials: no serious dust, conductive particles or explosive hazardous substances.