Mini Dual Power Automatic Transfer Switch 2 Control Modes Strong Conductivity Generator Changeover Switch AC400V 63A Item Type: Dual Power Automatic Transfer Switch Material: PC Flame Retardant, Brass, PCB, Silver Rated Current: 63A Operating Frequency: 50Hz Rated Voltage: AC400V Coil Voltage: AC220V Display Function: Indicator light display Operation Mode: Automatic, manual ATS Level: CB level Conversion Time: Less than or equal to 2s Usage Level: AC 33iB Conversion Method: Automatic switching and automatic recovery Working Principle: The power supply signals of this series of dual power supply controllers and drive mechanisms depend on the A phase and N line input ports of the normal switch or standby switch. In the automatic state of dual power supply, when the common switch voltages of the incoming phase A and N circuits are normal (ac190-240v), the common switch will be preferentially closed regardless of whether the voltages of the common power supply B. C and the standby switches a.b.c and N are normal. At the same time, the power LED and the public shutdown LED light up. When the incoming common switch phase A and line N have no voltage, and the incoming standby switch phase A and line N have normal voltage, regardless of whether the voltage of the normal switch B and standby switch C is normal, the dual power supply is switched to standby. The power indicator and the standby close indicator light are on. Manual function, regardless of whether the normal power supply and standby power supply have voltage, can adopt manual operation mode. During manual operation, the manual automatic button should be placed in the manual operation position. Rotate the push handle clockwise to the terminal, the standby power supply air switch R is turned on, and the public power supply air switch N is turned on. When the push handle is rotated counterclockwise to the terminal, the standby power supply air switch R is closed, and the public power supply air switch N is opened.