Light Switch Junction Box Wiring Guidelines

Fig 2 explanation of above picture.

Light switch junction box wiring guidelines. With power through wiring power enters the switch box. The national electrical code nec dictates that no wiring splices are allowed outside of an approved enclosure. This is an updated version of the first arrangement. Junction boxes come with either 3 4 5 or 6 terminals so work our which you will need to complete your project.

I am installing a 4 gang switch box. How are light switches wired that connect to a junction box. Any standard outlet switch box or light fixture box can serve as an approved enclosure but where a wiring splice needs to occur in other locations along the circuit the approved enclosure is usually a junction box a junction box is simply a standard electrical box that is. The ceiling will be a drop ceiling so i am running the 14 2 wire to a junction box.

Once you find it you can push your wire through the hole and use fish tape to push your wire through the cable clamp and attach it to the junction box. Dean a homeowner in illinois asks. Fig 2 the feed cable comes from a previous junction box or from the consumer unit the red black and earth wires are connected to separate terminals. These boxes protect hot black white neutral and grounding green or copper electrical wires and may contain some other wire colors for secondary functions and lighting.

It originally had two flourescent strips lights a light switch and the outdoor light on it. The feed wire the hot wire coming from the service panel runs to the switch before it goes to the fixture. The red and black are used for hot and the white neutral wire at the switch box allows for powering a timer remote control or other programmable switch. Fig 1 the junction box should be wired as shown below.

The terminals are where the connections will be made by inserting the wire core from either side or the wiring run and then screwing the terminal close to create a safe electrical junction and join. Because the electrical code as of the 2011 nec update requires a neutral wire in most new switch boxes a 3 wire cable runs between the light and switch. The junction box should be wired as shown below. Your electrical box or light switch should have a cable hole for you to insert one of the wire into.

So i m trying to replace a mess of a junction box and add my new outside light to it using a 4 way junction box. Fig 2 the feed cable comes from a previous junction box or from the consumer unit the red black and earth wires are connected to separate. Light switches and light fixtures electrical question. The neutral wires are spliced and a black wire connects to each switch terminal.

Junction box in action. Wiring diagram of a one way lighting circuit using junction boxes fig 1. Line diagram of a one way lighting circuit using junction boxes fig 1. Junction box terminals and wiring.

Explanation of above picture.