NT1 fuse link,80A-250A .500V,660V,690V NT00, NT0, NT1, NT2, NT3, NT4 /NH00, NH0, NH1, NH2, NH3, NH4 etc.fuse link ... with knife contactcartridge fuse ... linkSpecifications: 1) LV HRC fuse links2) Rated voltage: 500V-660 AC3) Rated breaking capacity ...