Is there a fuse not normally seen in North America that would be used on 1000VAC motors? The only options I'm finding are 1000VAC rated semiconductor fuses or the 3" diameter x 10" long, 2400VAC, R-rated motor fuses.
Older Joy mining machines (and a lot of similar ilk) are 1000V. An ex-employer of mine used to make soft starter controllers for Joy, we used the Siba fuses because there was no room for R type 2400V fuses.
"Dear future generations: Please accept our apologies. We were rolling drunk on petroleum."
— Kilgore Trout (via Kurt Vonnegut)
For the best use of Eng-Tips, please click here -> faq731-376