... can provide meter ,voltmeter,ammter,power meter,domestic electric meters.......Shape and hole cutout dimension Unit :mmSizePanel dimensionCase dimensionHole ... the Electric Power Cabinet easily Can measure current, voltage, frequency, power factor, active power and reactive power. The ... 50V 100V 220V 240V 220/380V 240/415VCurrent:5aThese meters are used with potential secondary voltage 100V voltage ...