New Cutler Hammer breaker box in camper's wiring closet. Two AC source cables enter in the bottom of the box. The box is installed upside down. The brown nomex entering the top of the box is 14/2 w/Ground that is as supplied by the camper's manufacturer. The blue nomex entering the sides is 12/2 w/ground that I installed, each blue cable supplies one wall outlet box. Click again for more detailed original source picture