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Answer for USA, Canada and countries running a 60 Hz supply service.you need #6 gauge wire

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A #8 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 50 and 55 amps respectively. Motor load feeders have to be sized to 125% of the motors full load amperage. 50 x 125% = 62.5 amps.

A #6 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 65 and 70 amps respectively.

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For a 50 amp well pump, you would typically use AWG 6 copper wire for a distance of up to 50 feet. If the distance is longer, you may need to use a thicker wire, such as AWG 4, to account for voltage drop. It is important to consult local electrical codes and a professional electrician to ensure the proper gauge wire is used for your specific installation.

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10mo ago
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Q: What gauge wire for a 50 amp well pump?
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