... ,active power,reactive power , apparent power, power factor and frequency.They are displayed by LED or LCD. Visual display , ... current,active power,reactive power ,apparent power,power factor ,frequency.LED or LCD display , Local data queryCurrent Conversion Ratio ... of connectionsingle-phase ,three-phase three-wire,three-phase four-wireRated voltageAC57.7V ,AC 100V,AC220V,AC380VRated currentAC1A , ...