ATA821 Bus Tie Adapter for Dual Power Switch is a kind of adapter which makes convenience for connection between HAT821 dual power bus tie ATS controller and smart breaker, reducing a lot of field wiring work for users, not only labor saving, time saving but also reliable. 
 
PERFORMANCE AND CHARACTERISTICS
Suitable for 3Ph 4W AC system; 
Two integrated 400V/50Hz/10A circuits of air breaker, which are individually used to connect two circuits of AC power; 
All-in-one integrated adaptor, which can simultaneously connect S1 breaker, S2 breaker and bus tie breaker; 
Suitable for HAT821 dual power bus tie ATS controller; 
Cold rolled plate closure; 
With screw installation method, adapter is fixed by 4 screws.