Quote:
Originally Posted by old_coot88
A fuse's voltage rating has more to do with its 'dialectric' strength against arc-over. It's the highest 'safe' voltage allowable across the popped fuse. In the application discussed here, it looks like a 125V fuse would be under-rated, since there'd be 255V across it if it popped.
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The information is very dated!
Fuses have changed drastically, per U/L and the National Electrical Code.
Fuses made years ago are no longer suitable. Sand filled and porcelain tube fuses are common now in the higher current ranges.
I'm trying to remember the various fuse types that I encountered when I was working as an Industrial Electrician.
