If the hot is connected to the supply and it is turned on and the switch is turned on and the neutral not connected this could be quite true. Connect the neutral to the supply neutral and shut the switch off. Now the only reading that you should get is the hot supply.
The dimmer switch can become hot because it regulates the flow of electricity to control the brightness of the light. This process can generate heat as a byproduct.
Many trivets have 3 legs.
The dimmer gets hot because it takes the extra voltage that isnt being sent to the lights and converts it to heat to dissipate it.
You need a three way switch to control lights from two locations. The name is misleading. Three way switch refers to the connection points on the switch. You can use a three way switch as a single switch as long as you place hot wire on the brass screw and the use any of the other screws for the return hot.
NO, the 480 Volts Y -- is 4 wire system, with three wires which are hot legs @ 480 volts between each three hot legs. A mid tap is a neutral leg (ground) the white wire. Which gives 277 volts between it and any of the three hot legs. so a 4wire 480 volt Y system. Gives 480 /277 volts.
No, it is not safe to touch a dimmer switch when it feels hot. This could indicate an electrical issue that may pose a fire hazard. It is best to turn off the switch and have it inspected by a qualified electrician.
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.
To install a dimmer switch with 3 wires, first turn off the power to the circuit. Connect the ground wire to the green screw on the dimmer switch. Connect the black wire to the wire labeled "hot" on the dimmer switch. Connect the red wire to the wire labeled "load" on the dimmer switch. Secure the wires with wire nuts and install the dimmer switch into the electrical box. Turn the power back on and test the dimmer switch.
To wire a single pole dimmer switch, first, turn off the power at the circuit breaker. Remove the existing switch and identify the two wires connected to it, typically a black (hot) wire and a second wire (either black or red) that leads to the light fixture. Connect the incoming hot wire to one terminal of the dimmer and the outgoing wire to the other terminal. Finally, secure the dimmer in the electrical box, attach the cover plate, and restore power to test the dimmer.
A dimmer switch wiring diagram shows how to connect the wires of a dimmer switch to the electrical system in your home. It typically includes instructions on where to connect the hot, neutral, and ground wires. You can find specific diagrams online or in the instruction manual that comes with your dimmer switch.
they can be all three…watch out.
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