... , destroy magnetic, 10% step;Accurate:Rated AC voltage, current @50Hz,25°C:0.2%Rated AC voltage, current @45-55Hz,25°C: 0.3 ... %Rated AC voltage, current @40-60Hz,25°C: 0 ... duty. FTR-01 Digital Fault Recorder series(Concentrating or distributing application):FTR-01S series: Recorder for Smart Power GridsFTR-01L series ...