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Post by wisconsinjoe on Jul 17, 2021 5:31:23 GMT -8
In setting up my battery 12 volt system, do I need a fuse or breaker between the battery positive and the fuse block where all my wire circuits come in? If so, how many amps for the fuse? And what kind of fuse?
Also, should I send a ground wire from the negative terminal on my battery to the ground lug on my frame? If so, how big should the wire be?
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Post by vikx on Jul 17, 2021 10:51:24 GMT -8
I use a self resetting 20 amp breaker between the battery and the inside fuse block. The breaker is located in the J box which is used for the 7 way cord, grounds and tow wiring. (near the tongue) The trailer hot wire comes off the "aux" post of the breaker. www.autozone.com/starting-charging-and-miscellaneous-electrical/circuit-breaker/p/bussmann-circuit-breaker-bp-cbc-20hb-r/32371_0?rrec=trueYou can also get a covered breaker and mount it on the frame. Use 8 gauge wires on the battery. Negative should be grounded to the frame. Positive goes to the "batt" post on the circuit breaker. <a data-flickr-embed="true" href="https://www.flickr.com/photos/53634851@N03/34828339513/in/album-72157683590489800/" title="12 Volt System Diagram"><img src="https://live.staticflickr.com/4229/34828339513_425481a348_z.jpg" width="640" height="465" alt="12 Volt System Diagram"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script> |
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Post by vikx on Jul 17, 2021 11:08:07 GMT -8
J box parts: <a data-flickr-embed="true" href="https://www.flickr.com/photos/53634851@N03/35250424210/in/album-72157683590489800/" title="12 Votl Parts 4"><img src="https://live.staticflickr.com/4205/35250424210_e61d6a2503_z.jpg" width="640" height="427" alt="12 Votl Parts 4"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script> Wires connected in J box: <a data-flickr-embed="true" href="https://www.flickr.com/photos/53634851@N03/35250422860/in/album-72157683590489800/" title="Junction Box 4"><img src="https://live.staticflickr.com/4139/35250422860_0a86841b34_z.jpg" width="640" height="427" alt="Junction Box 4"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script> |
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Post by wisconsinjoe on Jul 17, 2021 18:28:58 GMT -8
Saint vikx
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lexcentric
New Member
'56 Dalton Frame-up rebuild - New axle. waiting for better weather to put new walls up
Posts: 12
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Post by lexcentric on Jul 19, 2021 6:26:18 GMT -8
What amp ratings do you go with for the various fuses (fan, lights, etc?) Same for all or variable?
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Post by vikx on Jul 19, 2021 21:01:18 GMT -8
Fuses are used according to the amps needed on each circuit. For instance, a water pump might need a 7.5 amp fuse, Fan and upper lights, 10 and 10 for the cigar plug. Most items are labeled according to amp draw. I think a Fantastic Fan draws 4 on high, maybe a little less.
All wiring must accept your amp ratings. I use 14ga, so my fuses don't go over 10 amps. If you use 16ga wiring, then your amp rating goes down. For 12ga wiring, you can bump up to 20 amps...
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