ZLQ3 series automatic transfer switch(Double power automatic transfer switch) applied to rated insulation voltage 690V, rated voltage of 400V or below, rated frequency of 50Hz, rated voltage 400V and below, rated current from 25A to 400A.
ZLQ3 has overload, short circuit, and break phase protective function, especially applicable for important places where power cut is not allowed like fire control, hospital, bank and high-rise, as the important electrical equipment to ensure continuous power supply.