For wires that are not connected to the device, bend them so they curve around the inside edges of the box and push them flat towards the back. Distribution boxes are the unsung heroes of our electrical systems, quietly managing power until something goes wrong. When they start tripping, overheating, or making strange noises, it's more than just an inconvenience - it's your home's cry for help. Also, if one of the wires break from kinking (pulling out and putting back back in as replacing over the years), how do you repair that when another wire-nut surely isn't going to fit in the already tight box?Are there any tricks to getting everything to fit inside of a box? Ideally, I like to use these: That is a PITA, because it involves plaster work after the box is in, and it's a new-work box so you have to nail it to stud. But it gives you 105 cubic inches, for the 3-gang size with the 3/4 raised. Answer: The best way to repair a broken electrical box is to replace it. Although some products are available that claim to restore the plastic threads, I have not tested them, so I cannot comment on their effectiveness. It takes the incoming power and safely distributes it to different circuits throughout your building.