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15 Amp 250 Volt fuse in a 13 Amp, 120 volt system. Onle one end of the fuse was heating up, and the plastic part of the holder melted. The fuse blew. I thought maybe the fuse blew because it was old, and that melted the holder. But after cleaning up the clips, I put a new fuse in and the one end of the fuse started heating up and sparking again. I flipped the fuse around, and the other end of the fuse started heating up on the same end of the holder. So I flipped the holder around. Still the same end of the holder. I tested for shorts, but there were none. It was still pulling 13 amps, as expected. I installed a new fuse holder, which is NOT heating up. It's working fine with the new fuse holder.

So what would cause that to happen? Does plastic get old and become conductive? I know there's no metal in the fuse holder.

2006-10-04 15:17:31 · 3 answers · asked by Rockstar 6 in Home & Garden Maintenance & Repairs

3 answers

If the fuse wire is not securely connected to the terminal on the fuse, or if the Fuse Grip is not making good contact with the Fuse Base , then there will be increased resistance and as a result more heat generated.

The same could happen if the Fuse Wire being used is of lower rating ( thinner). Then also there will be more heat generated.

but I think scenario one is more likely in your case.

2006-10-04 15:31:08 · answer #1 · answered by Best Answer 3 · 0 0

Fuse Holder Melted

2017-01-19 03:49:55 · answer #2 · answered by ? 4 · 0 0

sounds like something wasn't tightened tight, and was acring a little. Or it could have been a moisture/corrosion problem. If this fusebox is in a damp or outdoor location i recommend you use a product called no-al-ox .......no aluminum oxidation. its pretty self explanatory.

2006-10-05 16:00:15 · answer #3 · answered by hillbilly named Possum 5 · 0 0

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