I want to replace a blowed fuse 125V/4A but it is rare to find them. Can I use instead a 250V/4A ?
I read at https://www.mojotone.com/support/Knowledge-Base/Is-it-ok-to-replace-125v-glass-fuses-with-250v-glass-fuses-of-the-same-rating that
Fuses are designed to protect over-current, not over-voltage. Therefore as long as the fuse amperage is sized appropriately and as long as your fuse voltage meets or exceeds your application voltage the fuse will safely protect.
So, its ok to replace with 250V/4A ?