Automatic Voltage Switcher(AVS)

Protects from over voltage and under voltage on any one of the three phases as well as loss of one or more phases. Indication and/or disconnection as a result of mains frequency error of phase sequence error is available as an option. The AVS is designed to operate an external control circuit or contractor which May be part of a motor starter or other equipment. The AVS will open the contact if it detects a voltage problem.