Feature 1 POWER TRANSFER SWITCH: The automatic transfer switch consists of two units of miniature circuit breakers and accessories, mechanical interlocking drive, controller and other components. 2 SIMPLE STRUCTURE: The switch is small in size, simple in structure, easy to operate, driven by a single motor, smooth, noiseless and small impact. 3 RELIABLE PERFORMANCE: The automatic transfer switch has mechanical interlock and electrical interlock functions, and can be powered manually or automatically. 4 PC SHELL: The enclosure of the transfer switch is made of PC with strong insulation, good flame retardancy and long service life. 5 WIDE APPLICATION: The changeover switch is especially suitable for lighting and small motor control equipment, and is widely used in homes, factories, laboratories, farms, etc.Item Type: Dual Power Automatic Transfer SwitchMaterial: PCRated Voltage: 230VFrequency: 50,60HzATSE: CB classRated Current: 63ANumber of Poles: 2PWorking Principle: This series of dual power supply controller and drive mechanism power supply signal depends on the A phase and N line of the common switch or standby switch inlet port. When the dual power supply is in automatic state, when the voltage of incoming phase A and N common switch is normal (AC190-240V), the common switch will be closed in priority regardless of whether the voltage of common power B.C and standby switch a.b.c and N is normal. At the same time, the power supply indicator and the common off indicator light up. When the incoming public switch A phase and line N have no voltage, and the incoming standby switch A phase and line N have normal voltage, the dual power supply turns to standby closure regardless of whether the normal switch B and standby switch C have normal voltage. The power indicator and standby closure indicator are on. Manual function, regardless of whether the voltage of normal power supply and standby power supply is available or not, manual operation mode can be used. For manual operation, the manual-automatic button should be placed in the manual operation position. Push the handle to rotate clockwise to the terminal, the standby power vac open R open, the common power vac open N close. When pushing the handle to rotate counterclockwise to the terminal, the standby power switch R closes and the public power switch N opens. Package List1 x Dual Power Automatic Transfer Switch1 x Instruction