Good fellows, I ordered for spare main blade fuses in the 175 A and 500 A current rating. That is how my high protection module is set up. The blade fuses are connected in parallel receiving supply from the +ve.

I have received my spares and one of them should be going in to replace the 175 A main blade fuse. Trouble is it is labelled 32V. I thought it should be 12V. As I am not yet at my house, I cannot check to see what was on the original. Just asking for some advice and tips. Is a 32v rated fuse safe? Same goes for my 500 A fuse.

Your astute insights very welcome.

 

As long as the current rating is correct and the voltage is LESS THAN 32 volts, it is fine to use the fuse. In other words, a 12 volt application for a fuse rated 32 volts is fine.

 

Thanks!

 

Re: For the benefit of some reader in the future.

It is okay to use a fuse with voltage equal to or higher than that of the system circuit. I have installed my 32v blade fuse w/o incident and even confirmed that the original had the same voltage rating. I also did some reading on the issue here: http://www.optifuse.com/PDFs/FuseSel...Guide_RevA.pdf and here Frequently Asked Questions - Littelfuse at question 5 especially.

Cheers.