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john degemis (Degemis)
Registered Member Username: Degemis
Post Number: 54 Registered: 3-2008 Posted From: 71.92.155.232
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Rating: N/A Votes: 0 (Vote!) | Posted on Saturday, March 28, 2009 - 7:35 pm: | |
Ready to set up the 12 volt fuse block. Since so many things will feed off of it what size wire do I need to go from the battery positive to the fuse block? |
George M. Todd (George_mc6)
Registered Member Username: George_mc6
Post Number: 763 Registered: 8-2006 Posted From: 64.55.111.6
Rating: N/A Votes: 0 (Vote!) | Posted on Saturday, March 28, 2009 - 8:02 pm: | |
John, Ten 20 Amp fuses COULD draw 200 Amps, which would require about 3/0 Copper, for a reasonable voltage loss. Have you figured out how many circuits you are going to have, and about how much load each of them will draw? Throw that out here if you would, and we'll give you an exact answer... Remember the ground cable will have to be the same size. Also, I would put a 300 Amp fuse right close to the batts, to prevent fires! Regards, George |
Sean Welsh (Sean)
Registered Member Username: Sean
Post Number: 811 Registered: 1-2003 Posted From: 67.142.130.28
Rating: N/A Votes: 0 (Vote!) | Posted on Saturday, March 28, 2009 - 9:17 pm: | |
You need to tell us: -Total expected load on the 12-volt system. Add it up, there's no way around it. -Distance between the batteries and the fuse panel, by whatever route the wires will take. Then we can tell you what size wire you will need, and what size main fuse is required to protect it. -Sean http://OurOdyssey.BlogSpot.com |
Gus Causbie (Gusc)
Registered Member Username: Gusc
Post Number: 852 Registered: 11-2005 Posted From: 208.54.200.6
Rating: N/A Votes: 0 (Vote!) | Posted on Sunday, March 29, 2009 - 1:24 am: | |
You can always parallel wires if necessary to carry a large load. |