Trailhunter Powered Aux Circuit Question

[DeadSetMonkey]

As I plan the use of my Aux curcuits. I want to be mindful of amp needs of potential aux circuit accessories.
Can any Aux circuit have any fuse?
Looks like they have 5A, 10A, and 15A from the factory.
Is Aux3 max amps 5, for some reason, or could I put a 15A fuse in the Aux3 circuit?

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[StreeTaco]

You definitely could do this. Just make note that the wire gauge differs on all three.

 

[DeadSetMonkey]

You definitely could do this. Just make note that the wire gauge differs on all three.

Gotcha. But is wire gauge the rate limiter, AMP-wise? i.e. if I stick a 15amp load on the Aux 3 circuit, will the aux 3 circuit melt, cause the wire is only rated to 5amp?

 

[StreeTaco]

Gotcha. But is wire gauge the rate limiter, AMP-wise? i.e. if I stick a 15amp load on the Aux 3 circuit, will the aux 3 circuit melt, cause the wire is only rated to 5amp?

If the fuse rating exceeds the wire rating, then yes it will fry the wire.

 

[DeadSetMonkey]

So, then, it sounds like I should honor the OEM Fuse specs and not exceed each aux circuits OEM fuse set up. Too bad they didn't add the flexibility of high amp loads to all the circuits.

 

[RESQCAT]

Fuse specs are sometimes conservative. You might test to see. Given that these trucks were engineered in a particular way... I tend to go with the flow. There are some blanks in the panel that you can wire in the way you want, or you can add an SPOD or SP9100 to add switches.

My RIGID bumper lights (thanks again John from SPV) do not draw much, but the AUX 1 black 15A wire is the one that powers that rear pigtail. So AUX 1 black wire is the one I used for those.

Now AUX 2 Green is 10A, and my RIGID amber bumper LED bar draws 8.5. AUX 3 white is 5A, and my ditch lights draw 2.5. Good to go especially if the specs are conservative... i.e. the actual capacity is a bit more than what is printed.

 

[MHG]

Is there any more information on the pigtail in the cabin and the one in the back? Most videos only show the one under the hood and that is pretty much self explanatory. If the exposed wires on the harness under the hood is switch 1,2 and 3. What do the exposed wires in the cabin and in the back of the trick get controlled by? I can’t find any figure it out with a volt meter but I am guessing it’s going to come back to the same 3 switches thus limiting the amperage on the wires if they share the same switch.

And for the record, I have a 2025 OR and it did not come with the 90 amp set up with the 4th switch.

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