... special conductive copper part. The embedded poles, in epoxy resin with unique materal, make features of aging resistance, low/high-temperature ... No.DesignationUnitParameter1Rated VoltagekV12/242Rated CurrentA630,1250,2500,3150,40003Rated short circuit breaking currentkA20,25,31.5,404Rated short time withstand currentkA20 ...