RH-ATSQ1 Dual Power Automatic Transfer Switch (A.T.S for short) applies to the terminal double-loop power supply system that 50Hz/60Hz, rated operating voltage 220V(2p),380V (3p and 4p), rated current 10 ~ 63 A. It can automatically switch the normal power to reserved power to prove the reliability of power supply, mainly used for fire pumps, smoke fans, elevators, pumps, lighting in high-rise buildings, shopping malls and other places.

When the main power supply is normal,using the automatic model,the circuit breaker of reserve power supply is off,the circuit breaker of main power supply is on.When one phase or all three phase of the main power supply is off,the ATS will convert to the reserve power supply(the reserve power is normal),when the main power is normal,the reserve power will recover back to main power again.