What Gauge Wire Is Required On a 7-Way Connector
Question:
I want to make a 4 foot extension on my 7 blade rv connector. I want to know what guage wire i need. I think the power and the ground are different gauges than the other 5. Thanks for the help.
asked by: Tom
Expert Reply:
On a 7-Way connector the suggested minimum wire gauge for the White (ground) wire, the Red or Black (power) wire, and the Blue (brake power) wire is 12 gauge. The minimum wire gauge for the remaining Green (right turn/brake) wire, the Yellow (left turn/brake) wire, the Brown (tail lights) wire, and the Purple (reverse light) wire is 16 gauge.
I have the Hopkins 7-Way Molded Trailer Wire Connector with Lead, part # H20042. This is a 7-Way blade plug on one end and a 3 foot wire lead. Also, the Hopkins 7-Way Molded Trailer Wire Connector with Lead, part # H20046, which is a 7-Way blade plug with an 8 foot wire lead.
I am including a link to a FAQ page on wiring.
Angel
8/11/2024
I converted my 4 lin trailer plug to a 7 pin. The 4 to 7 pin adapter has 14 awg so I ran a 14 awg wire to my brake controller as well as to the battery. I see on the internet that it's fine but I am a little scared it won't work because I also see that the 12 volt lead from the 7 pin to the battery should be 12 awg and the wire from the 7 pin plug to my brake controller shouod also be 12awg. Am I okay with the 14 awg or do I NEED to switch it
Jon G.
8/12/2024
Products Referenced in This Question
7-Way Molded Trailer Wire Connector - 3' Long
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 0 - 5 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Product Page this Question was Asked From
Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- Plug Only
- 7 Round - Blade
- Pollak
more information >
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Gerald G.
5/11/2020
Looking for information on what gauge wire the tow vehicle manufacturers GM, Ford, RAM would typically use for this connection? Especially for the plus and minus. We have a Bull Dog 650 hoist from etrailer.com that we intend to power from this connection.