On Sun, 09 May 2021 12:10:43 -0400, micky
wrote:


Alas, that page just lists APR fuses along with ATO and ATC, and doesn't
say a word about what makes APR different from others.


Since your Google seems to be broken, let me help
APR is a generic replacement for ATO / ATC fuses (trade names
registered to Littelfuse / Bussmann respectively).

They all meet the same standard, just different manufacturers.