[blagie]

FYI: Page 6 is worth looking at.

* A 25A fuse will conduct 52A-110A for 5-10 seconds, which is about the 2x in my original post.

* For shorter time periods, this goes up a lot (150-260A for 100 milliseconds).

I'm getting down-voted, but no one is posting contradictory information. This discussion feels more like reddit than HN.

As a footnote, at least in the US, in the 21st century, I've never seen a house with fuses rather than breakers. As you point out, copper is expensive, and a breaker is $10-$15. It's not only more convenient, but saves more money elsewhere.