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No! The minimum wire size allowable is 10 gauge for a 30 amp circuit. Don't risk the chance of an inner wall fire because too small of a wire gauge was used. Never shortcut anything to do with electrical wiring. Never.
Wiki User
∙ 7y ago
Wiki User
∙ 14y agoYes, a #8 wire is rated at 45 amps. One of the duties of a breaker is to protect the wire from over current. A 30 amp breaker will trip before reaching 45 amps so the wire will never get close to its rating.
Wiki User
∙ 7y agoA breaker is used to protect the conductor that is connected to it. A #14 copper conductor with an insulation factor of 90 degrees C is rated at 15 amps. So you see in this situation, the breaker is too large to protect the size of wire that you stated.
There is one occasion where the breaker can be larger than the wire size capacity. That is on motor load connections. A motor on start up can draw 300% of its nameplate amperage rating. To stop needless tripping every time the motor start, the electrical code allows a breaker to be rated at 250 % of the motors name plate rating..
For example if a motor draws 10 amp running current, the proper size breaker will be 10 x 250% = 25 amps. As there is no wire rated for 25 amps the next largest size would be #10. A #10 copper conductor with an insulation factor of 90 degrees C is rated at 30 amps.
Wiki User
∙ 11y ago12 gauge wire is required to be protected with a 20 amp max breaker. 10 gauge is required for a 30 amp breaker.
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Can you put 20amp breaker on 10-2 wire?
No, you should match the breaker size to the wire gauge. A 10-2 wire is typically rated for a 30 amp breaker. Using a 20 amp breaker on 10-2 wire could result in overheating and a potential fire hazard.
Can you run 8 gauge wire on a 50 amp breaker?
No, you should not run 8 gauge wire on a 50 amp breaker. The wire size should be compatible with the amperage rating of the breaker to ensure safety and prevent overheating. For a 50 amp breaker, you should use a minimum of 6 gauge 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.
Can a circuit breaker be tripped by using 20 amp sockets instead of 15 amp sockets?
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.
What size wire and breaker do you need for a 5000 watt garage heater?
Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker
What size breaker should you use for a tnia-10 wire?
25 amp breaker
What size breaker should be used on a 20 amp motor?
30 amp breaker with #10 gauge copper wire
What size amp circuit breaker should be used for 110 outlet?
The size breaker you use is determined by the size wire used in the circuit. If you use AWG #12/2 wire then use a 20 amp breaker. If you use AWG # 14/2 then use a 15 amp breaker.
What size breaker should be used for a double oven?
50 amp breaker wired with AWG # 6 wire.
Should 25 amps breaker be replaced by 20 amps?
For typical residential house wiring 12 AWG wire is required for a 20 Amp breaker. If you change out the breaker for a 25 A breaker you would have to rewire the circuit with 10 AWG. In that case you could up the breaker to 30 Amps. All outlets and switches should be rated at the same voltage and current as the breaker.
What size breaker should be used with ceiling fans?
Use 15 amp breaker with 14 gage wire or 20 amp breaker with 12 gage wire. Either way will work just fine.
What size wire and breaker do you need for a 5000 watt garage heater?
Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker
Can a 40 amp breaker not a 4 amp breaker be used to replace a 35 amp breaker for ac unit?
No, it is not recommended to replace a 35 amp breaker with a 40 amp breaker for an AC unit. Breakers are designed to protect the circuit and the equipment, so using a higher rated breaker can lead to overheating and potential damage. It is best to use the correct amperage rated breaker for the equipment.
What size breaker can you use on a 7500watt generator?
Depends on the wire size you are using. If the generator breaker is a 30 amp then install a 30 amp breaker.
Can you put 20amp breaker on 10-2 wire?
No, you should match the breaker size to the wire gauge. A 10-2 wire is typically rated for a 30 amp breaker. Using a 20 amp breaker on 10-2 wire could result in overheating and a potential fire hazard.
Can you run 8 gauge wire on a 50 amp breaker?
No, you should not run 8 gauge wire on a 50 amp breaker. The wire size should be compatible with the amperage rating of the breaker to ensure safety and prevent overheating. For a 50 amp breaker, you should use a minimum of 6 gauge 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.
