... used in AC 50HZ, rated voltage 3.6-40.5KV, rated current up to 6.3A circuit for protection transformers from overload ... Diameter (mm)XRNP1 3.60.5, 1, 2, 3.15, 6.3 50 14222 / 25XRNP1 7.20.5, 1, 2, 3.15, 6.3 50 14222 / 25 ... XRNP1 7.20.5, 1, 2, 3.15, 6.3 ... 50 192 / 19522 / 25 XRNP1 10 (12)0.5, 1, 2, 3.15 50 192 / 195 ...