If you had to ask this question here you need to learn more about your local wiring code re all the items you must use for a new household AC power range circuit.
Serious home fires can result from incorrectly installed new circuits.
So that the new installation is safe and legal - and complies with the terms of your home insurance policy - you must use the correct type and size of cable, the correct type of circuit breaker and the correct type of wall outlet.
From the local wiring code, a licensed electrician will know which size of wire to use because the answer depends both on the current to be carried (amps) and on the length of the run from the breakers on the main supply panel to the place where the outlet for the kitchen range is to be fixed.
For your own personal safety -- as well as your family and anyone else who may use the new range circuit in the future (such as if you sell your home) -- the best advice anyone can give you is call a licensed electrican to do the job. He will be able to advise you about the right wire size for the length of run, the types of breakers (main panel and GFCI), the outlet and anything else which may be necessary for your new range circuit to comply with the wiring codes in your locality (town/state), and he would install them safely for you.
<><><>
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.
On a 30 amp circuit, you would use a #10 copper ground. The ground never has to be larger than the ungrounded conductors.
Remove the 30 amp double pole breaker and install at least one single pole 15 amp breaker. It is best if the other slot is not left open so if you have another single pole breaker of any size install it in the 2nd spot so it isn't open when you replace the cover on the panel. For your 15 amp circuit you need #14 gauge copper wire or larger with a hot, neutral, and ground. Your 30 amp circuit was probably wired with #10 gauge conductors. These will probably work on your 15 amp circuit but it may be difficult to connect #10 conductors to devices.
AWG # 10 wire on 30 amp circuit.
No, electrical code typically requires that circuits be protected by a breaker that matches the wire size. A 30 amp breaker is typically used for circuits with larger wire sizes. For a 120V circuit, a 20 amp breaker is more suitable with appropriate wire size.
Answer for USA, Canada and countries running a 60 Hertz supply service.Yes, a 240v 50amp circuit can be changed to a 120v 30amp circuit. The wire for the 50 amp circuit should be a #6. This is more than ample for a 30 amp circuit. Remove the two pole 60 amp breaker and replace it with a single pole 30 and a single pole 15 amp breaker. One of the two #6 wires will be terminated on the neutral bus (if there is a white use it) and the other #6 will be terminated on the new 30 amp breaker. This will give you the required 120 volt 30 amp circuit. The new 15 amp breaker that was installed just to fill the hole from the two pole 60 amp breaker will give you a spare 15 amp circuit. I have no idea what you are trying to do, but there is no way you can change 220v 50 amp to 120v 30 amp. You can take 220 volt input in the top of your circuit breaker box. Then half of one side will be 120v and half of the other side will be 120v. You can install a 30 amp fuse. You should hire an electrician.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-energizedIF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
The recommended wire size for a 30 amp circuit is typically 10 gauge wire.
The appropriate wire size for a 30 amp circuit is typically 10 gauge wire.
The recommended wire size for a 220v 30 amp circuit is typically 10 gauge wire.
The recommended wire size for a 240V 30 amp circuit is typically 10 gauge wire.
The recommended wire size for a 30 amp 240v circuit is typically 10 gauge wire.
The recommended wire size for a 30 amp dryer circuit is typically 10 gauge wire.
The appropriate wire size for a 220v 30 amp circuit is typically 10 gauge wire.
The appropriate wire size for a 240V 30 amp circuit is typically 10 gauge wire.
The recommended wire size for a 30 amp 220 volt circuit is typically 10 gauge wire.
The recommended wire size for a 30 amp circuit is typically 10 gauge wire.
For a 30 amp 240 volt circuit, a wire size of 10 AWG should be used.
The appropriate wire size for a 220 volt 30 amp circuit is typically 10 gauge wire.