Item Type: Dual Power Automatic Transfer Switch Material: PC Rated Working Voltage: AC400V Control Voltage: 220V Rated Isolation Voltage Ui: 1000V Rated Impulse Withstand Voltage Uimp: 8KV Rated Short Time Withstand Voltage: 9kA Usage Category: AC 33B Rated Production Capacity: 10Ie Rated Breaking Capacity: 8Ie Rated Power: 50HZ Grade: pc Working 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 allowed1Advanced 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. 24 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. 3Mechanical 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. 4Safe 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. 5Wide Application: The switch can be used in homes and public places, especially in office buildings and public places that need fire protection. 1 x Dual Power Automatic Transfer Switch 1 x Handle 2 x Key 1 x Manual 12 x Bolt 12 x Nut