Fluke 943121 440mA/1000V Fuse
Replacement Fluke meter fuse for the Fluke meters shown below. Fluke references meter fuse holders by the markings "F1", "F2" or "F3." Since Fluke meter fuses may be used in different meters, in different fuse positions, we have listed in the chart in the "Specifications" section for each meter the correct fuse position. The fuse measures 10mm x 35mm and is a fast-acting, "fast blow" type fuse. Fast blow fuses are not appropriate for protecting equipment from voltage surges on standard AC power lines.
Please note: Fuses are not returnable. Fuses are cross-referenced and verified to work only in the instruments listed for each fuse and on our "Fuse selection guide". The only specifications known are those shown.
● Fuse F1
Fluke 175 / 177 / 179 / 187 / 189 / 23-III / 26-III / 27 serial# > 7247001 / 77-III / 77-IV / 79-III / 787 / 789 / 83 serial# > 66290001 / 83-III / 83-V / 85 serial# > 66340001 / 85-III / 87 serial# > 65650001 / 87IV / 87-V / 87E-III / 88V / 89-IV
● Fuse F2
Fluke 787 / 789 / 863 / 865 / 867 / 867B / 8845A / 8846A
● Fuse F5
Fluke 45 serial# > 7211001