Rated voleage up to AC500V Rated current up to 63A... Rated breaking current: 50KA product name: fuse ,fuse unit ,fuse holder,screw base fusefeatures:1) rated voltage : 110V-600V2) rated current: 5A-200A3) base type: E27 E33 is available for client choice.4) main body material :porcelain5) metal accessory material: iron galvanized ,iron plated nickel,brass plated nickel Screw fuse