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. This is an updated version of the first arrangement.
How To Wemo Light Switch Installation No Neutral
When wiring a light switch. The essence of the wiring configuration is for one hot feed wire entering the switch box to be split so that it feeds both switches which in turn feed hot wires in cables that lead out to two separate light fixtures. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram. Hey doing it yourself is great but if you are unsure of the advice given or the methods in which to job is done dont do it. If the power runs to the light then the switch there will still be a live wire in play regardless of the switch position. This site is merely a collection of how some people do home improvements. Wiring a 3 way light switch.
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. Wiring a light switch with the power coming from the lights to the switch is probably the easiest way to wire a switch. There is no way we can anticipate every situation and we do our best to. If you put the loop over the screw in the counterclockwise direction tightening the screw will force the loop open and could create a loose connection. Wrapping the wire clockwise when wiring a light switch ensures that the loop on the end of the wire will tend to close when the screw is tightened. If you choose to control your overhead lighting with smart switches or dimmers youll either want to hire an electrician to install the switch or wire the light yourself.
There are many ways to control and automate your lights with smartthings. Wiring a single pole light switch. To help guide you through wiring a light switch yourself we wanted to highlight a great post from the smartthings community posted by sidjohn1. If you have the chance wire your lights this way as it is the easiest scenario. However the actual look of the wiring in the box can vary depending on where the switches are located along the circuit run. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.
If the power goes from the switch to the light then turning off the switch will cut power and make it safe.