• Glass tube, fast-acting with nickel-finish brass end caps• 5mm diameter A fuse with nickel-finish brass end caps, overall size 20 x 5mm diameter. Designed to IEC127 with SEMKO, UL, BSI & VDE approvals. Rated at 250 Vac with a breaking capacity of 35A or 10 times the rated current, whichever is greater. Supplied in packs of 10.