Frame current: 63A Rated current: 63 A Number of poles: 2 Breaking capacity: 6kA ATS Level: CB Level Product Type: Transfer Switch Product Series: Dual Powered Automatic Transfer Switch Controller Type: Motor Rated voltage: 230 Wiring method: up and down Dimensions: 150*138 Installation method : screw fixing Installation size: 118*128 Weight: 1.5 kg Electrical life: 2000 Mechanical Life: 1000 3C Rated Voltage Range: 50V above 440V and below Working Frequency: 50Hz/60Hz Rated voltage: AC400V Working voltage: AC220V Display function: LED display Product size : 150mm x 138mm x 115mm Operation mode: automatic and manual Conversion time: 2S Usage level: AC - 33iB Conversion method: self-inversion and self-recovery Dual power supply automatic switch is to switch two power sources, divided into common power supply and backup power supply. When the common power supply is cut off, the backup power supply will provide power and common power supply will return to usual power supply after power on. principle), if there is no need for automatic switching under special circumstances, you can also set it to manual switching (this model can be used for both manual / automatic adjustment, arbitrary) Additional Note: Standby power should only be switched to backup in the event of a common power failure when there are diet. At present, this model is widely used in AC 220V circuits, the common power supply is the mains power supply, and the backup power supply can be solar energy, electricity, etc. 39; street light power supply, battery power supply or any AC 220V power supply, and vice versa (Note: The common/standby power supply must be AC 220V power supply, if it is DC or low voltage power supply, the inverter must be converted to AC 220V)