1) The new type fuse link with button: The product is made of "K" typefuse link is 6-8 melting speed, and "T" type with 10-13 melting speed, these two types off are link are popularized by National Resource Department and are widely applied to RW10\RW11\RW20\PRWG1\PRWG2 TYPE ANDso on drop-off type fuse.2) The general fuse link with button: the product is made of tradtional silver and copper alloy, and its melting rate is 10-13. it applies to RW10\RW11\RW13\RW20\PRWG1\PRWG2 adn so on drop-off type fuse.3) The generral fuse link: The product is made of tradtional silver and copper alloy, and its melting rateiS 10-13\The product applies to RW1-10, RW3\RW4\RW5\RW7\and so ondrop-off type fuse.Technical SpecficationExpulsion fuse link for fuse cutoutRated voltage: 11KV-36KVRated current: 1A-200ARate of melting: Class K & Class T