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#12 AWG Copper. (The previous answer, "12/2 with ground", was incorrect. That answer specifies Romex. Not all homes are wired in Romex, and if they were, it would be acceptable to use any number of conductors inside the cable, including 12/2, 12/3, 12/4, and even the "new" 12/2/2.) If you receive free breakers with a "panel kit", and they are 20A breakers, keep in mind you cannot use them where a 15A breaker was previously. The wires on the 15A breakers is likely 14 AWG which can overheat and cause fire if installed on a 20A breaker. The 'weakest link' is supposed to be the breaker, not the wire. -------------- If you do not understand the work well enough to accomplish it yourself properly and safely, don't try it. Consult a professional electrician, as they are proficient enough to do it properly and safely.When working on electrical circuits and equipment, make sure to de-energize the circuit you will be working on. Then test the circuit with a definitive means to make sure it is off (multimeter with metal tipped leads, voltage tester with metal tipped leads, etc., not a non-contact tester, which is non-definitive.)
What else can I help you with?
What is the minimum wire size for a 30Amp breaker?
The minimum wire size for a 30Amp breaker is typically 10 AWG for copper wire and 8 AWG for aluminum wire, according to the National Electrical Code (NEC). This wire size is necessary to safely carry the amount of current without overheating.
When installing a circuit breaker do you size the breaker to correct wire size or the device its controlling?
When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.
Can you switch from 15amp to 20amp on a double pole breaker?
The minimum size wire a 20 amp breaker needs to be connected to is a #12 wire. The 15 is probably connected to a #14 right now which is only rated for 15 amps. Remember the breaker is sized to the wires ampacity not the load .
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.
14 gauge wire can be on what size circuit breaker?
A 14 gauge wire is typically used on a 15 amp circuit breaker. It is not recommended to use a larger circuit breaker with a smaller wire size as this can create a fire hazard.
What is the minimum wire size for a 30Amp breaker?
The minimum wire size for a 30Amp breaker is typically 10 AWG for copper wire and 8 AWG for aluminum wire, according to the National Electrical Code (NEC). This wire size is necessary to safely carry the amount of current without overheating.
What is the minimum size wire allowed for a parallel run?
The minimum size wire that can be paralleled together stated in the electrical code book is a #3 copper conductor.
How do you know if the AC breaker matches the AC unit starting demand load?
Read the literature for the ac condensing unit, or the tag on the outside of the unit. Minimum circuit ampacity= minimum breaker, wire and fuse size. Maximum circuit ampacity= the maximum size. Your circuit breaker, wire size and disconnect fuses should all be at or between those 2 numbers.
What is the recommended wire size for a 50amp breaker?
The recommended wire size for a 50 amp breaker is typically 6-gauge wire.
When installing a circuit breaker do you size the breaker to correct wire size or the device its controlling?
When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.
What is the recommended wire size for a 20 amp breaker?
The recommended wire size for a 20 amp breaker is typically 12-gauge wire.
What is the appropriate wire size for a 25 amp breaker?
The appropriate wire size for a 25 amp breaker is typically 10 gauge wire.
What is the appropriate wire size for a 30 amp breaker?
The appropriate wire size for a 30 amp breaker is typically 10 gauge wire.
What is the recommended wire size for a 25 amp breaker?
The recommended wire size for a 25 amp breaker is typically 10 gauge wire.
What is the recommended wire size for a 30 amp breaker?
The recommended wire size for a 30 amp breaker is typically 10 gauge wire.
What is the recommended wire size for a 50 amp breaker?
The recommended wire size for a 50 amp breaker is typically 6-gauge wire.
What is the recommended wire size for a 60 amp breaker?
The recommended wire size for a 60 amp breaker is typically 6-gauge wire.
