wiring up the essentials?

[wandererr]

So I'm slowly (extremely slowly) working on my build.... I redid the suspension a bit and now I'll be stretching it 8 inches. As soon as I do that I will put the floor down but before I do that I want to run my wiring for the 7 pin connector, to where the battery is going to be, to the brakes and to the brake lights.... having said that - anyone ever drew it out? What and where did you fuse? where did you place the actual fuse box?

 

[Titanpat57]

I like to keep all the truck wiring seperate from the trailer side. I use a color coded plastic "junction box" for the 7 pin lead.

This is an example...

Look at this on eBay http://www.ebay.com/itm/351743301645

Now, you don't say, but will the trailer have its own battery...maybe two? How will they charge? Do want to use the truck only?...we need some missing parts of the puzzle.

 

[wandererr]

You there will be a battery and later on I will add a solar charger but none of that wiring will be below floor.

 

[verdesardog]

Be safe Fuse everything! The easiest thing to do is get a fuse box/distribution center with more places for fuses than you think you will use. It will be nice to have all the fuses in one place. Except the battery fuses which need to be as near the battery terminals as possible.

 

[97kurt]

Like what others said, get the junction box. It makes life so much easier when dealing with issues or if you ever need to add something to the trailer (reverse lights, charging circut etc..).

https://www.amazon.com/Inline-Trail...1466090387&sr=8-7&keywords=7+pin+junction+box

For everything else, get a simple fuse box.

 

[walley_eye]

Be safe Fuse everything! The easiest thing to do is get a fuse box/distribution center with more places for fuses than you think you will use. It will be nice to have all the fuses in one place. Except the battery fuses which need to be as near the battery terminals as possible.

When you talk about the battery fuses, how do you know how big a fuse to use? I’ve seen different diagrams where the fuse was 40, 80 or higher. Help.


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[dreadlocks]

http://circuitwizard.bluesea.com/

Whats the biggest load you intend to hookup to your battery? For example I'm putting a 1k watt inverter on mine, it can burst to 2400W and 200A is most my LVD relay can handle, so I put a 200A fuse on it (2400/12=200) and dont really expect to use that much but I didnt want it popping til I was in danger zone.

your fuses need to pop before the wires melt and do further damage, NEVER put a larger fuse on a circuit than the wiring is capable of handling.. otherwise you might as well not even have a fuse.. in my case I have 1ft 00AWG to Disconnect Switch, 6in same cable to LVD, and then 1ft of 00AWG to Shunt.. the inverter gets connected at shunt and LVD and the cabling (2.5ft total + inverter hookups) is capable of carrying far more than 200A (its way oversized to reduce voltage drop)

this is what I use for my main battery fuses, bolting it right to the terminal is as close as yeh can get really: https://www.amazon.com/gp/product/B0019ZBTV4/

 

[old_CWO]

I have used factory "mega-fuse" holders and fuses from Ford cars out of the junkyard for main feed protection. It's a cheap easy way to get OEM quality parts. As Dreadlocks advised, watch that your circuit protection is properly rated for both load and conductor size.