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If you are in the US, and in a residential application, you are probably using Romex type cable (NM, or NMC). That type of cable is restricted to the 60 degree column for ampacity calculations and would require a #6 copper wire for a 50A application. At that size, a 50' length will probably not impact the voltage drop.

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13y ago
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5mo ago

For a 50 amp circuit at 220 volts running for a distance of 50 feet, you would typically need a 6-gauge wire. This wire size can handle the current without significant voltage drop over that distance. It is always recommended to consult with a qualified electrician to ensure safety and compliance with local electrical codes.

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15y ago

# 6 gauge.

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Q: What guage wire for a 220 volt 50 amp at 50 feet?
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