Standards IEC60044-1; IEC 61869-2; ANSI C57.13; NTC 2205; GB1208-2006 Accuracy Class 0.5%, 1% Range of primary rated current 300-3000A Range of Rated load 25VA Rated frequency 50/60Hz Rated secondary current 5A or 1A Secondary winding power frequency withstand voltage 3kV, 1min Safety Factor Rating (FS)