Mersen one-time midget fuse provide low-cost protection for 250 volt AC general purpose lighting, heating, control circuits where time-delay is not required. Current rating 1 ampere. Fast-acting midget fuses. Low cost and fully rated for economy without compromise. It can be used with UltraSafe fuse holders. Applications: supplemental protection of circuits up to 250VAC and 10kA. Approvals: UL listed to standard 248-14 file E33925; CSA certified to standard C22.2 No. 248.14. Measures 13/32-inches diameter by 1-1/2-inches length.