A 125 amp panel or subpanel requires # 2 gauge feeders and neutral. (# 2 awg is rated for 130A) However, depending on the existing load in your main 150A panel you likely don't have enough power to operate a 125 Amp subpanel.
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∙ 14y agoWiki User
∙ 10y ago4 AWG in copper.
2nd answer:
Note that while 4 AWG is legal to run per NEC, if the panel is heavily loaded you will exceed the recommended maximum voltage drop (3%). For that length of run it would be advisable to increase the wire size to lower the voltage drop.
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∙ 10y agoNormally you would use AWG #6 but for this long run and voltage drop I would recommend you use AWG # 4.
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∙ 11y agoA 2/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 125 amps for 150 feet on a 240 volt system.
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∙ 8y agoA #2 copper conductor with an insulation factor of 90 degrees C is rated at 130 amps.
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∙ 10y agoUse AWG # 1/0 gauge copper.
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∙ 10y agoYou will need to run AWG #4.
Re Question with the voltage that you will be using.
Depends on the size of the sub-panel in that garage. If you are installing a 60 amp sub-panel 400 feet away from the main service panel then use AWG # 4.
For that distance I would run AWG # 3 copper and install a sub-panel.
A #8 copper wire with an insulation factor of 75 or 90 degrees C is rated at 45 amps.
I would install a 60 amp sub-panel and use AWG #3 copper.
Re Question with the voltage that you will be using.
Depends on the size of the sub-panel in that garage. If you are installing a 60 amp sub-panel 400 feet away from the main service panel then use AWG # 4.
For a 125 amp sub panel located less than 200 feet away from a 200 amp panel, you would typically use a 2 AWG copper wire or 1/0 AWG aluminum wire to safely carry the current load. It's important to follow local electrical codes and regulations when selecting the wire size.
For that distance I would run AWG # 3 copper and install a sub-panel.
A #8 copper wire with an insulation factor of 75 or 90 degrees C is rated at 45 amps.
I would install a 60 amp sub-panel and use AWG #3 copper.
For a 60 amp service: At 750 feet away, you would need at least #4 copper or #2 aluminum wire to account for voltage drop. At 500 feet away, you could use #6 copper or #4 aluminum wire for the same purpose.
No, a 12 gauge wire is rated for 20 amps, which matches the breaker size. It is not recommended to use a wire that matches the breaker size as it can result in overheating and potentially cause a fire hazard. Consider using a thicker wire, such as 10 gauge, for the 20 amp breaker to ensure safety for the sub panel.
This is a voltage drop question. A voltage must be stated to answer this question.
Use #10 copper.
# 6 copper wire.
#6 bare copper wire.