... to measure DC current, voltage & AC current, voltage, frequency and phase power. ANNAI panel meter can measure the current, voltage frequency ... withstand: common type 4. Insulation strength Arcsine 50Hz, 2kV/2min. There should be no feed-through and flashover indications on the ... φ =0.5-1-0.5100V/5A 220V/5A 380V/5AThree-phase synchronous tableS2.5100V,220V,380/100V