For reference, maybe it helps others, I compiled some data from several datasheets and information of suppliers.
Stuff is still incomplete, as it was not easy to get detailed datasheets of some fuses from the manufacturers website in a hurry.
Basically it boils down to the following facts:
If you want or need a 1000V fuse for your DMM in 10x35 or 10x38, there are basically SIBA, Bussmann and Littelfuse that manufacture the fuses that you can get in the USA or EU. Popular rebrand is Fluke with its own part numbers. Depending on the supplier and package size, those might in some countries easier to get.
Manufacturer Number Extension Size (mm) Rated Current Rated Voltage breaking capacity
Ampere Volts kA
SIBA 5021006 440 10x35 0,44 1000 30
SIBA 5021006 400 10x35 0,4 1000 30
SIBA 5019906 10 10x38 10 1000 30
SIBA 5019906 „05“ 10x38 0,5 1000 30
SIBA 5019906 1 10x38 1 1000 30
Bussmann/Eaton DMM-B-44/100 10x35 0,44 1000 10
Bussmann/Eaton DMM-B-11A 10x38 11 1000 20
Fluke 943121 10x35 0,44 1000 10
Fluke 203403 10x38 11 1000 20
Fluke 203411
Fluke 2279229 6,3x32 0,315 1000
Fluke 803293
Littelfuse FLU.440 10x35 0,44 1000 10
Littelfuse FLU011 10x38 11 1000 20
Ferraz Shawmut FSM44/100
Ferraz Shawmut FSM11