Fusible link -- What Amp?
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- Zoltan
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Fusible link -- What Amp?
My truck lacks the fusible link between the battery and the alternator. I found a nice pair of fused wires in a Honda that actually has real fuses (the glass type) in them. I am ready to splice in the new fusible link. What Amp fuses should I put in ?
- Zoltan -
________________________________
'82 Datsun 720 SD22 California model
'86 Ford Escort 2.0L Diesel
________________________________
'82 Datsun 720 SD22 California model
'86 Ford Escort 2.0L Diesel
- asavage
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Wow, good question. Based on the wire gauge, I'd guess 50A.
Thing is, fusible links are by their nature slow. The GPs will draw upward of 150A surge (for a second). While a fusible link handles that nicely, a typical fuse won't.
IOW, a Honda fuse replacement for the Nissan fusible link may not be a workable solution.
Thing is, fusible links are by their nature slow. The GPs will draw upward of 150A surge (for a second). While a fusible link handles that nicely, a typical fuse won't.
IOW, a Honda fuse replacement for the Nissan fusible link may not be a workable solution.
Regards,
Al S.
1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.
Al S.
1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.
- asavage
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- Posts: 204
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- Location: Redmond, WA
Here's a web link with some reference information on sizing fusible links:
http://www.madelectrical.com/catalog/fusible-link.shtml
I don't know what the alternator's output is--assuming 40-50A, a 12GA fuse link should be fine.
One way to tell if a fuse link is sized properly--feel it. If so hot that you can't hold onto it (under normal electrical load conditions, and assuming the ambient temperature is not 150 degrees F), it's probably undersized.
http://www.madelectrical.com/catalog/fusible-link.shtml
I don't know what the alternator's output is--assuming 40-50A, a 12GA fuse link should be fine.
One way to tell if a fuse link is sized properly--feel it. If so hot that you can't hold onto it (under normal electrical load conditions, and assuming the ambient temperature is not 150 degrees F), it's probably undersized.
- philip
- Deceased
- Posts: 1494
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- Location: Southern California, USA
Re: Fusible link -- What Amp?
These fusible links are suppose to fail ... so, I have this 'hard'fix' handy in the glove box.
-Philip
Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
"Im slow and I'm ahead of you"
Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
"Im slow and I'm ahead of you"
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