What is the Maximum Amperage Draw Rating for a 7-Way Trailer Connector

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Question:

What is the max amp draw typically for the center connector that is labeled as purple/reverse lights?

asked by: John F

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Expert Reply:

The reverse light circuit on most vehicles usually have a max amperage draw of around 5 amps. The amperage is usually limited by the gauge of the wire used on the circuit. The recommended wire size for the reverse light pin on the Pollak Black Plastic, 7-Pole part # PK12-707E is a 14 gauge wire. The maximum amperage that can be ran through a 14 gauge wire safely is 15 amps.

expert reply by: Conner L

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Answer 1

Most if not all trailer wiring harnesses/connectors use larger wires for the 12 volt and ground circuits compared to the other circuits (lights). The sockets themselves don't have an amperage rating so you will go by the draw of the things…

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Answer 2

The solar charge controller included in your Go Power Solar Elite Charging System #34282184 can handle up to 600 watts and the panels you have are rated for 380 watts. You will only want to utilize 75% of the max wattage the solar charge controller…

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Answer 3

You're on the right track; the Blue Ox #BX1307 are a fit on your 2010 Mini Cooper S and since you've got the manual transmission model, my research says that this model can be flat towed; just as a reference- the automatic transmission models…

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Answer 4

The Blue Ox Patriot #BLU37TR has a 2 amp max draw on your 12v power. It keeps the internal battery charged so you have function if the main battery fails. For your vehicle battery to fail, there must be another draw on your battery. My recommendation…

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Answer 5

The only pin that should be continuously showing 12V power on the 7-Way connector on your vehicle is the 12V power circuit which is normally the black wire but not always. In 7-way wiring the 12V auxiliary power feed is carried on the contact at the…

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Answer 6

The Blue Ox Patriot Portable Braking System #BLU37TR referenced in your question is designed to draw power from the battery in the towed vehicle by simply plugging in the included 12V cigarette outlet adapter inside the vehicle. It's very…

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Answer 7

The auxiliary 12-volt wire that runs from the 7-way connection to 7-way trailer plug will supply 12-volt power from the vehicle to the trailer. The 12 -volt power will allow interior or exterior lights to run that are not wired in to the…

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Answer 8

Some items in a trailer or RV will run off of 12 volt DC power or AC power so if your fridge runs when not connected to shore power then it will run off of the battery. That battery can receive a maintenance charge from the 12 volt circuit on a 7-Way…

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Answer 9

Thanks so much for the photos they were super helpful, and what you have is a 7-way on the RV and 7-way on your Jeep, and we do have one option for an extension cord that will work for you: - Curt Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV…

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Answer 10

The correct way to wire up the breaker that comes with the Roadmaster charge line kit part #RM-156-25 is to have the copper post ran to the positive post of the battery that is charging the other vehicle and the silver side to the battery that is…

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Answer 11

The flashing red light that you are getting is a sign of a voltage drop between the trailer ground and vehicle ground. This was likely caused by a loose connection in the 7-way and explains why it started and stopped randomly. You need to check the…

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Answer 12

The amperage rating of the battery charge line circuit which is run through the trailer connector will be based on the vehicle as not all are the same. That said, most trucks can handle up to 40 amps. If you see yourself exceeding this rating or your…

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What is the Maximum Amperage Draw Rating for a 7-Way Trailer Connector

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