So the red wire is probably the one you want. One is that the outlet is a 240 volt one which requires an extra hot wire.
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Wire manufacturers supply wire in a wide variety of colors and it is up to the electrician to use the correct wire color in home wiring.

Wall switch wiring with red wire. Examples include lutron caseta and grafik t. If you dont know how it was connect the red wire to one of them turn the power back on and try the lights. In the split tab configuration the two halves of the outlet are separated and the red wire goes to a wall switch.
Cap it with a wirenut or use push in connectors to attach all three wires. Normally youll see a red wire in places you would expect a ceiling fan. In my friends case the solution was simple if not intuitive.
I hope this helps you figure out. The red is the switched hot. The red wire is most likely a spare wire that was intended to be used when wiring for a ceiling fan.
In most cases you see a red wire in an outlet box only in special circumstances. If the switches malfunction switch the lower wires on the new switch. This constant use can loosen wire connections and eventually wear out the moving parts.
Wiring a switch is an easy do it yourself. After removing the old switch the preferred method is to join the two existing black wires together and to add a short additional black wire called a pigtail. Another is that the box is on a circuit three way switch loop.
How to wire a lutron control with 1 black 1 red and 1 white wire in a single pole application. But in places like a bathroom or a wall light if you see a red wire its a good bet that the red wire is the wire thats connected to the light switch. The purpose of a red wire for wiring a light fixture.
When you see a red wire in an outlet box its usually because the outlet is a switched outlet. The red wire will go on one of the brass screws but whether it goes on the left or the right depends on how the room is wired. Light switches can be used hundreds of times a year in a home.
In standard 120 volt wiring the hot wire is black but it can also be red. The wall switch typically when a ceiling fan is installed the red wire is most commonly used for the light and the black is commonly for the fan motor. The other outlet powered by the black wire which always has power is always on.









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