penger Posted September 9, 2009 Report Share Posted September 9, 2009 I had the fuse in my Klipsch iFi subwoofer blow. It's a 2A 125V slow blow fuse. Went to a couple Radioshacks and they only carry a 2A 250V fuse. Is it okay use that as a replacement? At the first the lady said, "Probably, but I wouldn't bet my life on it." Second store guy said "You only have to worry about over-wattage." My concern is that if something hits say... 200V and the fuse doesn't blow, will I end up damaging other components downstream? Quote Link to comment Share on other sites More sharing options...
Beefy Posted September 9, 2009 Report Share Posted September 9, 2009 It is my understanding that current blows a fuse, not voltage. So you can happily use higher voltage parts. Quote Link to comment Share on other sites More sharing options...
Pars Posted September 9, 2009 Report Share Posted September 9, 2009 Yes, it is fine. It is the current rating that you need to pay attention to; that and whether it is fast blow or slow-blow. Most fuses seem to be 250V anyhow... Quote Link to comment Share on other sites More sharing options...
penger Posted September 9, 2009 Author Report Share Posted September 9, 2009 Thanks guys. What's the purpose of the voltage rating then? Quote Link to comment Share on other sites More sharing options...
nikongod Posted September 9, 2009 Report Share Posted September 9, 2009 the fuse may blow but still conduct (due to arcing) if the voltage is higher than rated wikipedia about 1/3 of the way down. Quote Link to comment Share on other sites More sharing options...
penger Posted September 9, 2009 Author Report Share Posted September 9, 2009 So now I have in my hands a fuse that says 125/250V... Quote Link to comment Share on other sites More sharing options...
Beefy Posted September 9, 2009 Report Share Posted September 9, 2009 Just means it can be used for either. Quote Link to comment Share on other sites More sharing options...
penger Posted September 9, 2009 Author Report Share Posted September 9, 2009 And now I stuck it in, turned it on, and instantly blew the fuse... I guess my problems are a little more complicated now. Quote Link to comment Share on other sites More sharing options...
Dusty Chalk Posted September 9, 2009 Report Share Posted September 9, 2009 No, they were a little more complicated before, you just know that now. (I mean, seriously, how else do you blow a fuse on a speaker, unless you got amp problems?) Quote Link to comment Share on other sites More sharing options...
Fitz Posted September 9, 2009 Report Share Posted September 9, 2009 Did you put the fuse in the right way around? Quote Link to comment Share on other sites More sharing options...
manaox2 Posted September 9, 2009 Report Share Posted September 9, 2009 Did you put the fuse in the right way around? Got a multimeter? Quote Link to comment Share on other sites More sharing options...
penger Posted September 10, 2009 Author Report Share Posted September 10, 2009 Borrowing one tonight. Going to check the current across the holders later tonight. Quote Link to comment Share on other sites More sharing options...
cetoole Posted September 10, 2009 Report Share Posted September 10, 2009 Dont do that, measure DC voltage. Likely to blow your sub if you try and measure current by replacing the fuse with the dmm, since there is definitely something going on. Quote Link to comment Share on other sites More sharing options...
penger Posted September 10, 2009 Author Report Share Posted September 10, 2009 What value should I be looking/hoping for? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.