John Bonnett
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| posted on 29/6/11 at 11:40 AM |
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Fusing Main Battery Feed
it has always worried me that you can fuse every single circuit but if the main battery lead shorts out to Earth for whatever reason, there is
absolutely no protection.
So I took this device of my old Peugeot 205 which, in Peugeot circles, is called the Shunt. It is very convenient because it works as a fused
distribution terminal. The positive battery cable connects directly to it. I have fitted four main feeds and each has a 20Amp fuse. This is a very
convenient little box which I thought might be of interest.
John
[img]
 
Shunt
[/img]
[Edited on 29/6/11 by John Bonnett]
[Edited on 29/6/11 by John Bonnett]
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ReMan
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| posted on 29/6/11 at 11:56 AM |
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The convenience is useful, but if I understand correctly a "Shunt Fuse" is not a fuse at all, it is a link.
So what you have no different from any other distribution fuses in a different place.
www.plusnine.co.uk
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John Bonnett
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| posted on 29/6/11 at 12:41 PM |
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quote:
Originally posted by ReMan
The convenience is useful, but if I understand correctly a "Shunt Fuse" is not a fuse at all, it is a link.
So what you have no different from any other distribution fuses in a different place.
That's right, big advantage is that the cable from the battery to the fuses is very short and
it was very convenient already having the battery cable connected and the heavy duty connectors all ready wired.
I'm lazy you see 
John
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coozer
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| posted on 29/6/11 at 01:03 PM |
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Good idea, this one is off the current Nissan Note.
Bolts directly to the battery, has a fused 250a link to the starter and 4 outputs of 60~80a.
1972 V8 Jago
1980 Z750
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John Bonnett
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| posted on 29/6/11 at 02:47 PM |
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quote:
Originally posted by coozer
Good idea, this one is off the current Nissan Note.
Bolts directly to the battery, has a fused 250a link to the starter and 4 outputs of 60~80a.
Even better, being right on the battery
John
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snowy2
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| posted on 29/6/11 at 07:22 PM |
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Personally i wouldn't bother, millions of cars have driven millions of miles and never needed them.....neither do you. ( a small short on a
circuit with a 5A fuse is enough to start a fire, your fuse above would have to be 50+A to be of any worth or use!)
Build the car right and dont worry.
What about foam filled fuel tank? 4/5 point harness? massive roll cage? helmet when driving? ABS? air bag? side impact protection? all of these are
more likely to be of use to you, i have been a mechanic for 20+ years and have yet to see a fire caused by a random electrical fault. plenty of minor
loom fires from shorts but never a major fire.
quite a few by dodgy fuel lines and bodged carbs but not electrical....a fair few by brake fluid spilling onto a hot manifold, but not shorted
battery's..... are you seeing a pattern here?
sometimes you are the pigeon, most of the time the statue.
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fastfu
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| posted on 29/6/11 at 09:48 PM |
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quote:
Originally posted by coozer
Good idea, this one is off the current Nissan Note.
Bolts directly to the battery, has a fused 250a link to the starter and 4 outputs of 60~80a.
Ive got one of them in my shed off my old 350z that you can have if you want to give it a try
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Davegtst
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| posted on 30/6/11 at 08:48 AM |
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I have a main fuse but only really because of the electric reverse. Instead of using parts from other cars just get one of these, they are made for
the job Maxi fuse holder
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