General "K" and "T" type fuse links / elements are divided into "KB, KU, KS" sub-types fuse links / elements which refers to general type, universal type and screw type per IEC-282 standard. They are applicable to drop-out fuse cutout with 11-36kV. 1. Latest model with button: it is made of "K" type fuse link with 6-8 melting speed and "T" type with 10-13 melting speed They are widely used for drop out fuse cutout. 2. General model with button: it is made of traditional silver and copper alloy with melting rate of 10-13. It applies to drop out fuse cutout.