CA-212 has been designed to ensure high accuracy in power factor regulation and excellent utilization of capacitor banks and relays in three phase 3 wire electrical grid common range for all network voltages from 100V to 440V system reactive power compensation front panel is equipped with a 3-digits 7 segments display to show the present value of power factor voltage and line current. Max 12 steps relay output for contactor easy commissioning optional LCD display screen(provide power monitor function and CT ratio setting). FEATURES I / U / COS measurement Three digital LED display Max 12 control steps (default 6 steps) Used in three-phase balance gird Self-powered from bus line