The breakaway junction box wires into your Scully or Civacon rack monitor in place of the standard junction box. When a drive-off occurs, the breakaway plus neatly pulls out of the breakaway junction box, and the plug & cord ride off with the trailer. All you have to do is plug in another plug & cord set and you’re up and running again. No more down time spent rewiring or expensive electrician costs. Also great for routine plug & cord set maintenance. Box, Plug, & Cord set comes with 2 J-Slot pins, 8 Contact Pins, and 30 ft. coiled cord.