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An electrical junction box allows for the wiring in and hook up of multiple outlets and other devices on a circuit. While one should always check with local codes and follow safety regulations regarding the number of drops and what type on a circuit, generally speaking there are a few things a junction box must have. They are mounted to a wall stud in the home, and depending on local regulation, have to be mounted at a certain height. They are usually metal, and have a plate over them that is removable.

Key Takeaways:

  • Junction boxes are typically made from metal or plastic and are about 2 to 3 and a half inches in depth.
  • Junction boxes have a completely accessible and removable cover and are designed to house the splicing of wires.
  • A junction box, which is a standard electrical box, is generally discovered mounted in the frame of a structure.

“Put simply – without a junction box, there wouldn’t be many types of outlets, switches or other electrical hookups in a room.”

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