Battery Disconnect Switch Wiring For a RV Trailer Breakaway Brake System

Question

Question:

When you turn the quick disconnect switch to off from the trailer battery and you still have the 7 pin connector plug in is it suppose to have power going to the trailer?

asked by: Rudy

0

Expert Reply:

When a trailer manufacturer wires in a Disconnect Switch # SE29VR the disconnect will only break the 12 volt connection for lighting, fans and other 12 volt accessories inside the trailer. It will still have power on the 7-way connector since the battery also powers the breakaway brake switch and will also send power to smoke and CO2 detectors inside the RV. This ensures the battery is maintained while traveling of your vehicle battery so that there are no issues with the breakaway system should the trailer become disconnected in travel.

If the switch was added after the trailer was made it must still have the connection for the 7-way and breakaway switch when powered off.

expert reply by: Bud M

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Answer 1

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Answer 2

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Answer 3

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 4

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 9

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Answer 10

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Answer 11

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Answer 12

Hi Tim, The SeaFlo Battery Disconnect Switch for Boats and RVs part #SE29VR measures 2 1/4" x 2 1/4" from center bolt hole to center bolt hole. If your current switch mounts at those same measurements, you shouldn't need to make any…

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Battery Disconnect Switch Wiring For a RV Trailer Breakaway Brake System

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