Features Two Unit Miniature Circuit Breaker: The automatic transfer switch is composed of two unit miniature circuit breaker and accessories (auxiliary contact, alarm contact), mechanical interlock transmission, controller and other components. Mechanical and electrical interlock: This automatic transfer switch has mechanical interlock and electrical interlock functions, can be reliably switched, can be powered manually or automatically, and the rated current of universal and sta Stable Performance: This switch has small size, simple structure, easy operation, long service life, superb craftsmanship, anti-interference isolation and stable performance. No Noise: The transfer switch is driven by a single motor, quiet and low impact, equipped with user terminals to reflect the circuit breaker status (open or closed), with various indications on the panel. Wide Application: Our automatic transfer switch is suitable for lighting and small motor control equipment. It is widely used in homes, shopping malls, factories, laboratories, farms and other situations. Specification: Item Type: Dual Power Automatic Transfer Switch Material: PC Rated voltage: 400V Frequency: 50 or 60 Hz Number of poles: 4 Segmentation capacity: 35 KA ATSE: CB quality Rated current: 63A Principle of operation: This series of dual power supply controller and drive mechanism power signals depends on the phase A and line N of the common switch or standby switch input port. Double power supply in automatic state, when the incoming A and N phase common switch voltage is normal (AC190-240V), the common switch will be closed in priority, than the common power supply B.C and standby switch a.b.c, the voltage N are normal. At the same time, the power indicator and the common shutdown indicator light up. When the phase A and line N of the incoming public switch have no voltage, and the phase A and line N of the incoming standby switch have normal voltage, the dual power supply will switch to standby close, than the normal switch B and standby switch C have normal voltage or not. . The Power LED and the Standby Shutdown LED are on. Manual function, whether the voltage of the normal power supply and the emergency power supply are available or not, the manual operation mode can be used. For manual operation, the manual automatic button must be placed in the manual operation position. List of packages: 1 x Dual Power Automatic Transfer Switch 1x user manual Package List 1 x Dual Power Automatic Transfer Switch 1 x User Manual