Detailed Product Description Power MeterWattmeters or Varmeters with build-incoverter for 1 phase, 3P3W,3P4W.Model:CP-144,CP-120,CP-96,CP-80,CP-72Class:1.5Voltage:50V,100V,220V,240V,220/380V,240/415VCurrent:5AThese meters are used with potentialsecondary voltage 100V VT or secondary current 5A CT.Wattmeters with build-in converter for3P3W,3P4W and single phase.