Fuse your charge ports: Ft. The smallest user serviceable fuse/holder

I think the answer is “most likely”

Fuses are meant to work up to their rating, so if you had a DC 250V 10A fuse, it’d work for 50V.

In cases where the fuse is rated for a lower voltage, the risk is that it’ll arc after failing and won’t actually cut power.

Since this is a relatively low voltage application, the arcing bypass isn’t as big of a concern (again, relatively speaking). Shorting the charge port and getting 100+amps to blow an out of spec 10A shouldn’t be too hard.

*this is all speculation based on some whitepapers, so my recommendation would be to use what you have if it’s what’s on hand and order some properly rated fuses to replace them later.
Input from anyone with off label use experience would be better, empirically.

Alternative option if you have piles of the fuses lying around is to test a couple yourself and see if they blow as expected at higher voltages.

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