Wiring A Trailet Horse Trailer For Lights, Fans, And An Electric Trailer Jack

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Question:

Hello. I am wiring up my Trailet Horse trailer with an aux battery, new junction box and a disconnect switch so that we can run new lights, fans, and camera while connected to the truck or disconnected temporarily. I also need to jack to operate from the battery as well. I have attached a diagram of what I am thinking but the actual wiring diagram - I’m a little unsure, especially when it incorporates the disconnect and breakaway switch. Can u give me some pointers as to how to wire the disconnect and breakaway? Should fans and such run to the battery or the hot lead from the junction box? Thanks.

asked by: Scott E

0

Expert Reply:

All clearance lights, tail lights, and the camera should run through to the 7-way connector junction box so that they are powered when connected to the tow vehicle. The breakaway switch will also need to be ran to this junction box in order to activate the brake assemblies in the event of a breakaway.

The fans and any internal lights or appliances should be ran to a DC distribution panel and then ran to the trailer battery for power. A small DC distribution panel can be picked up from your local hardware store and will provide fused protection for your appliances. The jack can also be wired directly to the trailer battery with a suitable amperage in-line fuse to protect the motor.

To keep the trailer battery charged up you can run a charge line from the 12v hot lead in the 7-way junction box to the battery. You'll need some 10 gauge wire # 10-1-1 and an in-line circuit breaker # PK54230 for this. This will charge the battery while the truck is running but will be limited to the output of the 7-way on the tow vehicle, which is typically pretty low amperage, usually around 10-15 amps.

If you want to charge the trailer battery while parked somewhere with 15 amp 110v service then you can install the Bright Way Switch Mode Battery Charger # BRW77FR and pick up an extension cord to complete the connection.

If you want a bit more of a dedicated charge while towing you can also install the Redarc In-Vehicle BCDC Battery Charger # RED96FR. This uses the tow vehicle's alternator to charge the trailer battery while the tow vehicle is running. This will require a fuse # 331-FK40 at both the tow vehicle and trailer battery for protection.

expert reply by: Kevin C

0

Trailer wiring diagram
(click to enlarge)

Answer 1

Hey Dan. The only DC to DC charger that you might be able to get away with mounting in a battery box is the OptiMate Smart Battery Charger item #MA99JR. It has a weatherproof case but it's still restricted to inside use only. An easier and more…

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Answer 2

Generally you do not want to leave a DC to DC charger exposed to the elements. While a charger like the OptiMate Smart Battery Charger #MA99JR does have a durable weatherproof case they restrict use to inside only. We do have the Breakaway Style…

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Answer 3

The best way to power the interior lights in your trailer is with its own independent battery. You will not want to use the breakaway battery. The breakaway battery is only designed to operate the breakaway and will drain extremely quickly,…

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Answer 4

I can help you figure out what your circuit breakers are rated for but unfortunately I don't know what circuit breakers came on your 2018 Venture Sonic 200VML. I can say that we typically recommend using either a 20A or 30A circuit breaker for…

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Answer 5

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 6

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 7

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 8

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 9

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 10

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 11

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 12

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Wiring A Trailet Horse Trailer For Lights, Fans, And An Electric Trailer Jack

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