To wire 2 3-way switches in a circuit, connect the common terminal of one switch to the power source, the common terminal of the other switch to the light fixture, and the travelers between the two switches. Make sure to follow the wiring diagram for 3-way switches to ensure proper connection and functionality.
To wire 2 lights with 2 switches in a single circuit, you will need to connect the power source to the first switch, then run a wire from that switch to the first light. From the first light, run another wire to the second light. Finally, connect a wire from the second light to the second switch. This setup allows you to control each light independently with its respective switch.
you will need 2-3way switch and 2-4way switch
Yes, you install a GFCI on a 2 wire circuit.
No. For any 3 way switch installation you need 2 "travelers" between switches and these conductors cannot be used for any other purpose. The 3rd wire is used for a neutral or switch leg, depending on the needs of the circuit, but is not connected to both switches. The neutral is not connected to either switch.
Firstly the switches need to be 2-way switches. Unfortunately there are 2 labelling conventions for these. There are also 2 ways to wire the circuit depending which way is easiest in your situation (uses least wire) One method uses 2 core cable between the switches, the other uses 3. Its hard to explain all this in words but there are some useful circuit diagrams in the link below that hopefully will help. Obviously all cables should conform to your countries colour scheme. You should also check local rules on DIY electrical installation.
A GFCI can not be used on a three wire branch circuit. It has to be on a single two wire circuit.
Sure; the fan has 3 wires so you can wire the light and fan separately, but if you don't have that option, you don't NEED to put the fan and the light on separate switches. You can always turn the light or fan on/off using the pull strings.
The recommended wire size for a 125A electrical circuit is typically 2/0 AWG copper wire.
The recommended wire size for a 200A electrical circuit is typically 2/0 AWG copper wire.
A 3way switch at each location is what you use, but it must be wired properly to work. You must have incoming power at one switch location and no power at the other location. The other location has the wire going up to the light. You then need a 3 conducted wire such as 12/3 or 14/3 running between the switches. Use the same size wire you used to power the switch and top up to the light. You then connect the black power wire at one location to the black screw on the switch, and at the other location you connect the black wire going to the light to the black screw on that switch. At each location tie the whites together under a wire nut and shove that back in the box. Tie the grounds together and connect that to the ground screw at each switch. At each location you will now have the black and red wire from the wire you ran between the switches left. Those are called travelers. Connect those wires to the remaining 2 screws left on the switches at each location. Does not mater which you connect to which screw. Assuming no other wires are involved this is how you wire it.
To control 2 lights with 2 switches in a single circuit, you can use a three-way switch setup. Connect one switch to the power source and the first light, then connect the second switch to the first light and the second light. This way, you can control both lights independently with the two switches.
The recommended wire size for a 125 amp electrical circuit is typically 2/0 AWG copper wire.