Wiring A Trailet Horse Trailer For Lights, Fans, And An Electric Trailer Jack
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
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.
(click to enlarge)
Products Referenced in This Question
40-Amp MIDI Fuse Kit for Redarc In-Vehicle 25-Amp BCDC Battery Charger
- Accessories and Parts
- Battery Charger
- Fuse Kit
- Redarc
more information >
Bright Way Switch Mode Battery Charger for Hydraulic Lift and Dump Trailers - 12V - 5 Ah
- Battery Charger
- Battery Charger
- Trailer
- Charges Only
- 12V
- Shore Power to Vehicle Battery
- Bright Way
more information >
Circuit Breaker - 30 Amp - Perpendicular Mount Bracket - Cycling Auto Reset - Metal - Type I
- Accessories and Parts
- Wiring
- Circuit Breaker
- 30 Amp
- Pollak
more information >
Redarc In-Vehicle BCDC Battery Charger - Single Input - DC to DC - 12V/24V - 12 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- Charges Only
- 12V
- 24V
- Vehicle Battery to Auxiliary Battery
- Redarc
more information >
Product Page this Question was Asked From
Horse Trailer Side Pad - 60" Long
- Horse Trailer Accessories
- Protectant Pads
- Side Pad
- 60 Inch Long
- Vinyl and Foam
- Redline
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: rhino box
- Shop: Westlake ST225/75R15 Radial Trailer Tire - Load Range E
- Shop: Bright Way Switch Mode Battery Charger for Hydraulic Lift and Dump Trailers - 12V - 5 Ah
- Shop: Horse Trailer Side Pad - 60" Long
- Shop: Bauer Products Locking Cam Latch for Horse Trailers - Matte Black - AE Series Key
- Shop: Pre-Drilled Round Rubber Trailer Bumper - 96" Long x 3" Wide
- Shop: Pre-Drilled Round Rubber Trailer Bumper - 96" Long x 2-1/16" Wide
- Shop: Locking Paddle Handle w/ Internal Release - 5-1/2" Long x 4-1/4" Tall - Zinc Plated Steel
- Q&A: Instructions for BrightWay BRW77FR Battery Charger
- Q&A: Owners Manual for Bright Way Switch Mode Battery Charger # BRW77FR
- Video: Review of Polar Hardware Trailer Door Latch - Paddle Handle Locking Latch - PLR5115
- Video: Review of Redline Enclosed Trailer Parts - Horse Trailer 60 Pad - HTP60BK
- Search Results: hydraulic tongue jack
- Search Results: trailer jack
- Shop: Trailer Hitch
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Article: Trailer Tire Sizing
- Shop: Trailer Wiring
- Q&A: What is the Difference Between Load Range C and D ST175/80D13 Trailer Tires
- Article: Trailer Wiring Diagrams
- Search Results: lug nuts
- Video: Timbren Axle-Less Trailer Suspension System Installation
- Shop: Suspension Enhancement
- Search Results: trailer tires and wheels
- Q&A: What is the Difference Between Load Range B and C Trailer Tires
- Article: Most Popular Wheel Bearings
- Article: 7 Common Questions Everyone Has About Trailer Tires
- Q&A: How To Determine the Correct Size Lug Nuts For a Trailer
- Search Results: spare tire carrier
- Shop: Brake Controller
on Horse Trailer Accessories
