Use a 15 amp breaker and 14 AWG wire and all switches and outlets rated at 15 amps or greater.
14 AWG.
Not unless you change the wiring for that circuit. The breaker protects the wiring and if you install a 40 amp breaker on a 15 amp wire circuit you will have a fire in your home.
If you have 100 amp wire, you can use it for a 60 amp circuit, or for any circuit of 100 amps or less. But if you have a 60 amp circuit, 60 amp wire is thinner and cheaper than 100 amp wire.
Yes you can. That being said the different wire size that is to be used can not have a smaller current capacity than the breaker that is supplying that circuit. In other words the wire size that is added to the circuit has to be larger not smaller. For example a 20 amp breaker can have a #12 at 20 amp rating, #10 at 30 amp rating or a #8 at 40 amp rating added to the circuit but not a #14 which is only rated at 15 amps. Using 15 amp wire on a 20 amp breaker could overload the capacity of the #14 wire which is rated for a maximum of 15 amps.
You use the correct size breaker depending on the size wire in the circuit. If the circuit is wired with AWG #12 wire use a 20 amp breaker. If it is wired with AWG #14 wire then use a 15 amp breaker.
A circuit breaker protects the wires that the devices are connected to. If the devices that are connected to the circuit are 20 amps the wire size should be #12 wire fed from a 20 amp breaker. This breaker should not trip unless the circuit is overloaded or a fault occurs on the circuit. If the devices that are connected to the circuit are15 amps the wire size should be #14 wire fed from a15 amp breaker. This breaker should not trip unless the circuit is overloaded or a fault occurs on the circuit. Putting 20 amp sockets on this 15 amp circuit will work but the circuit is limited to the amount of load that can be plugged in. You will not get the full capacity of the 20 socket because the breaker will trip at 15 amps.
A 15 amp circuit breaker is used to protect a # 14 copper wire which is the minimum size wire that can be connected to a 15 amp receptacle.
A 20 amp circuit with #12 gauge wire will work in any event but if the nameplate recommends a 15 amp circuit then #14 gauge wire on a 15 amp circuit is sufficient. In either case you will have a double pole breaker and your equipment may not require a neutral. Always run a grounding conductor.
yes if it is on a 15 amp circuit to keep it simple12-2 for 20 amp circuits
In North America you would need two 15 amp breakers to obtain 240 volts. The wire for a 15 amp circuit would be #14 AWG. So to answer the question, yes a 240 volt receptacle can go on a 15 amp circuit.
Yes. A twenty amp circuit just means the breaker (fuse) will kick in if you draw more then 20 amps, but its fine to use at less amperage.
A #14 copper wire rated at 15 amps is the minimum size wire for a 15 amp receptacle.