| Author | Message | ||
| john degemis (Degemis)
Registered Member Username: Degemis Post Number: 54 Registered: 3-2008 Posted From: 71.92.155.232  Rating: N/A |
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 |
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 |
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 |
You can always parallel wires if necessary to carry a large load. |