1、Product Structure: Composed of 2 unit mini circuit breaker and accessories (auxiliary contact, alarm contact), mechanical interlocking transmission, controller and other components. 2、High Performance: The dual power automatic transfer switch has the advantages of simple structure, small size, single motor drive, small impact, low noise and stable operation. 3、Interlocking Function: With mechanical interlocking and electrical interlocking functions, can be switched according to reliability, and supports manual or automatic power supply. 4、Clear Indication: Equipped with user terminal, which can reflect the circuit breaker status (open or closed). There are various indications on the panel, which are clear and intuitive. 5、Wide Application: The dual power automatic changeover switch has good interference isolation and is widely used in families, shopping malls, factories, laboratories, farms, etc. 1 x Automatic Transfer Switch Item Type: Automatic Transfer SwitchModel: SJCS Q1 63 4PRated Current: 63ARated Voltage: 400VACFrequency: 50HzPoles: 4PRated Impulse Withstand Voltage: 4KVInsulation Voltage: 4000VBreaking Capacity: 4KAATSE Level: CB levelWorking Principle: The power supply signal of the dual power supply controller and drive mechanism of this series depends on the A phase and N line of the input port of the common switch or standby switch. In the automatic state, when the incoming phase A and N common switch voltage is normal (AC190-240V), the public switch will be closed first regardless of whether the voltage of the public power supply B. C and the backup switch a.b.c and N is normal. At the same time, the power indicator and the public shutdown indicator light up. When the incoming public switch phase A and line N have no voltage, and the incoming standby switch phase A and line N have normal voltage, whether the voltage of normal switch B and standby switch C is normal or not, the 2 way power supply is switched to standby. The power indicator and standby close indicator are on. Manual function, no matter whether the normal power supply and standby power supply have voltage, can use manual operation mode. In case of manual operation, the manual automatic button shall be placed in the manual operation position. Turn the push handle clockwise to the terminal, the standby power supply air switch R is open, and the public power supply air switch N is closed. When the push handle rotates counterclockwise to the terminal, the standby power supply air switch R is closed and the public power supply air switch N is open.