Size of Circuit Breakers to Use To Install 7-Way Trailer Connector on 2012 Chevrolet Equinox
Updated 12/17/2011 | Published 12/16/2011 >
Products Featured in This Question
Question:
On the Black 12volt battery terminal. What amps will I be drawing with number10 wire? Will a 25 amp fuse handle it? Thanks
asked by: Dave M
Expert Reply:
If you are installing a 7-way and brake controller you will want to use a circuit breaker in-line when connecting the Black wire from the 7-way to the battery and in-line from the brake controller to the battery. The Black wire will draw 12 volt power.
For the Black wire that connects from the rear of the 7-way to the battery it is recommended to use a 40 amp circuit breaker, part # PK54540.
The Black wire running from the brake controller to the battery should also have a circuit breaker installed in-line before the battery. The size of circuit breaker to be used should be specified in the instructions of the brake controller, typically a 20 amp, part # PK54520, or 30 amp, part # PK54530 is used.
I have linked and FAQ on installing a 7-way and brake controller which features a nice diagram of the wiring.

Product Page this Question was Asked From
T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- Factory Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: reese friction sway control
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Search Results: friction sway control
- Search Results: 7 pin led adapter
- Search Results: hand rail
- Search Results: brophy rv steps
- Video: Hands-On with the NOCO GENPRO On-Board Battery Charger
- Q&A: Recommended Wire And Circuit Breaker For 12V Pin On Trailer 7-Way Connector
- Search Results: solar charge controllers
- Shop: Pollak Circuit Breaker - Cycling/Automatic Reset - 40 Amp - Straight Mount Bracket
- Article: Brake Controller Installation: Starting from Scratch
- Search Results: roof mounted solar kit w inverter rv solar panels
- Article: Trailer Wiring Diagrams
- Article: Routing the Power Wire for a Trailer Wiring Harness
- Q&A: Does 12 Volt Accessory Circuit of Trailer 7-Way Wiring Have Fuse Protection
- Shop: Pollak Circuit Breaker - Cycling/Automatic Reset - 30 Amp - Straight Mount Bracket
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Curt True Course Advanced Bluetooth Trailer Sway Control - 1 to 4 Axles
- Shop: Camco Fold-Away RV Grab Handle - Aluminum - White
- Shop: Lend-a-Hand Mini Folding RV Handrail - Black w/Black Foam Grip - Aluminum
- Q&A: Installing 7-Way and Wiring for Auxiliary Battery Charging
- Shop: Brake Controller
- Shop: Go Power Solar Elite Charging System - 400 Watt Solar Panels - 2,000 Watt Inverter Charger
- Q&A: Recommended Circuit Breaker and Wire Gauge for Wiring 7-way Trailer Connector
- Q&A: Do Circuit Breakers Provided with ETBC7 Have Diodes to Prevent Car Battery Discharge
- Video: All About the Goal Zero PWM Solar Charge Controller with 8mm Solar Connector
- Video: Bright Way Solar Battery Charger and Maintainer Review and Installation
- Video: In-Depth Review of the 40 Amp In-Line Circuit Breaker
- Q&A: Wiring Pollak 40 amp Inline Circuit Breaker
- Q&A: The Function of the Auxiliary 12-Volt Connection on the 7-Way Trailer Connection