Kit-kat fuse features fuse base & carrier both are manufactured from high grade porcelain. fuse base & carriers are available from 16a to 500a different rating and design as per g.e.b specification. providing for bus bar connection & cable connection both end in different rating units. porcelain rewireable kit kat fuses rated voltage : 415 v rated frequency : 50 hz rated insulation voltage : 500 v rated current rating : 163263100200 amp.