Thermostatically Balanced Frequency Converter Panels require 220 V to 660 V input voltage to operate efficiently. These Frequency Converter Panels provide output voltage of 220 V to 660 V. These Frequency Converter Panels are thermostatically balanced units that ensure efficient performance for longer period of time. Thermostatically Balanced Frequency Converter Panels are easy to use and come in different specifications to cater to specific requirement.