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How do you determine which wire is hot at a switch that has the white wires connected to each other and two black wires from different romex going to the switch?
Wiki User
∙ 13y ago
One of the black wires is the "feed" hot wire coming from the circuit's breaker on the incoming power panel.
The other black wire is the "switched" hot wire going to the load. (The light or whatever appliance the switch is controlling.)
If you don't know how to tell which black wire is which, the hot is usually the wire connected to the top screw on the switch. In Canada, there is a rule that all hot wires are to be connected to the top of switching devices.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Wiki User
∙ 13y ago
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Is it possible to wire a dimmer switch off another dimmer switch for a completeley different light?
No, the dimmer switch needs its own individual circuit power supply to feed the fixtures connected to it. The black of the second dimmer switch can not be connected to the red wire of the first dimmer switch. Now if you are talking about using a common "hot" to feed two dimmer switches then this can be done. The neutrals will be common also. So what you should have is two black wires connected together with the incoming "hot". Two neutrals connected together with the incoming white. The red from each dimmer is then connected to its own individual fixture load.
I have Two black wires and one red wire conected to a switch. Which is hot and which is neutral?
It sounds like your switch is a three way switch. The wire that is on the different colour screw of the three screws will either be the "hot" wire or the wire to the load. The neutral might or might not be in the box that the switch is in depending on which end of the three way system you are at. See discuss question button below.No wires connected to a switch are neutral. A switch breaks the circuit of the hot wire. Black AND red are hot wires. White is used for neutral and is almost never connected to a switch.
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When wiring a wall switch which color wire goes on the common terminal screws?
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How do you hook up one light to one switch in a basement lighting system that has all 10 lights connected to one switch?
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Dimmer switch that has one black wire connected to the left side and two black wires connected to the right side of the switch How do you connect these wires if you want to just install a regular flip?
Check the screws next to the wires and see what color they are if they are green, black, and red then do what i say next, if not you're screwd. just connect the red/black/green wires in the holes in the flip switch and be careful not to touch the wires just the protective covering and inert them they should auto lock in there...if not just screw them in.
How do you install a doorbell with four wires both having black and red wires?
It depends on what the wires are connected to and where the power supply is located. If the switch is lighted power has to get to the switch for the light. With a lighted switch you have a hot supply side, a neutral and then the wire going to the bell. So if Black 1 and Red 1 are supply voltage you would connect Red 1 to the hot side of switch, Black 1 would go to common as would Black 2. Red 2 would go to Bell side of the switch.
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