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What is the smallest copper wire size permitted by the national electric code for a 20 amp single phase electrical circuit?
I think you mean either what is the correct size or minimum wire size needed when a branch circuit is protected by a 20 A breaker. The size is 12 American Wire gauge (AWG). 14 AWG is used for 15 A circuit and 10 AWG for a 30 A breaker. The lower the gauge the larger the cross-section of the wire.
What is the equivalent of 14 AWG standard wire in UK?
14 AWG wire has a cross-section of 2.07 square millimetres so can be used up to a limit of 15 amps.
Is the wire running to a 20amp breaker different from a wire running to a15amp breaker?
Yes, a 20 amp breaker requires AWG # 12 copper wire. A 15 amp breaker requires AWG # 14 copper wire.
How big of breaker do you use for 115 volt?
Depends on the wire size used in the circuit. If you use AWG # 14 wire you must use a 15 amp breaker. If it is wired with AWG # 12 wire then you use a 20 amp breaker. If a AWG # 10 wire is used then a 30 amp breaker is required. The breaker protects the wiring from overheating so you must use the proper size breaker for the wire used.
What is the Minimum branch circuit wire size in a dwelling?
The minimum size home wiring is #14 AWG, the rating for that size wire is 15 amps.
What size wire do you need for 15 amps?
AWG 10.
Can 12-2 wire be used where only 14-2 wire is required?
Yes the ampacity of #12 is 20 amps whereas the ampacity of #14 is 15 amps, so you are well within the range using #12 wire.
What is the smallest copper wire size permitted by the national electric code for a 20 amp single phase electrical circuit?
I think you mean either what is the correct size or minimum wire size needed when a branch circuit is protected by a 20 A breaker. The size is 12 American Wire gauge (AWG). 14 AWG is used for 15 A circuit and 10 AWG for a 30 A breaker. The lower the gauge the larger the cross-section of the wire.
What gauge for wire can you use with a 15 amp circuit?
14 AWG.
What is the equivalent of 14 AWG standard wire in UK?
14 AWG wire has a cross-section of 2.07 square millimetres so can be used up to a limit of 15 amps.
Is the wire running to a 20amp breaker different from a wire running to a15amp breaker?
Yes, a 20 amp breaker requires AWG # 12 copper wire. A 15 amp breaker requires AWG # 14 copper wire.
What can you operate on 120 volts at 30 amps?
Yes, if you are using AWG # 10 wire. If you are using AWG # 12 then the answer is no you must use a 20 amp breaker. On AWG #14 wire you must use a 15 amp breaker.
What is larger 12 gauge wire or 20 gauge wire?
Yes, a #12 AWG conductor has a greater diameter than a #14 AWG conductor. A #12 conductor has an ampacity of 20 amps whereas a #14 conductor only has an ampacity of 15 amps.
How do you wire a 15 amp circuit?
Use a 15 amp breaker and 14 AWG wire and all switches and outlets rated at 15 amps or greater.
What is the differnet between 15 amp and 20 amp?
5. You are probably asking about wire size. 15 amps is typically 14 AWG and 20 amps is 12 AWG.
Got new AC code says we need to replace the 30 amp with a 15 amp to pass code can this be done with existing wires safely?
All depends on the size of the existing wiring. If you have a 30 amp breaker on AWG #14 wire then this is an unsafe condition that must be corrected. 15 amp requires that the wire be AWG #14. If the wire is #15 then you can and should install a 15 amp breaker. 30 amp breakers are used on AWG #10 wire.
Can you take a 14 awg wire and hook it to a 12 awg wire?
Yes as long as the breaker feeding the circuit is protected with a 15 amp breaker. The code states that the over current device can be no smaller than that of the smallest current carrying conductor. That will be the #14 wire with a capacity of 15 amps.
