Wiring Diagram for RAM Jacks Powered A-Frame Jack Switch part # EJ-3520-PSW

Question:

Wiring diagram available ? Been tasked with installing new switch and old one is missing.Any help be greatly appreciated.

asked by: Greg G

Helpful Expert Reply:

I attached a picture that I got from RAM jacks that shows how the RAM Jack switch part # EJ-3520-PSW that you referenced gets wired up.

expert reply by: Jameson C

click to enlarge

James M.

8/6/2020

I have the Ram EJ-3520-BBX tongue jack on my travel trailer. It has stopped working. Looking at replacing with the same model. Problem I am seeing is that the videos for connecting a new one have the cable going to the battery positive. Mine is run to the underside of the trailer and to a link that is then going to battery negative. I looked at the switch as it stopped working when I went to connect for our last trip. The switch seems to be working. The light has never worked. Ideas? Thank you.

Jon G.

8/17/2020

Yeah the wire that is on the Electric Jack # EJ-3520-BBX is supposed to be connected to a 12V power source. The wire will need to be connected to the positive side of your battery and the jack grounds via the mounting hardware. If your wire is connected to the negative side of your trailer battery then that means you have 2 ground connections and no power.