Wiring 3/4 HP Submersible Well Pump - Is #10 OK?

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Using #10 wire for a 3/4 HP submersible well pump is acceptable as long as the breaker does not exceed 20 amps, especially if #12 wire would have sufficed for the entire run. It's crucial to consider local electrical codes, which can vary significantly by location. Consulting a licensed electrician is recommended to ensure compliance and safety. If the motor's specifications indicate it draws an appropriate amount of current, the wiring setup should be adequate. Always verify the motor's amp draw against the circuit requirements for optimal performance.
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mixing 2 wire gauges for submersible well pump
3/4 hp submersible well pump with #12 wire at top of casing from pump. I had a senior moment and wired from the panel to the pressure switch and switch to top of casing with #10. I am thinking I am ok as long as the breaker never exceeds 20 amps. Just want to make sure. Thanks.
 
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Electrically, if #12 copper would have been sufficient for the entire run, then a combination of #10 and #12 copper would also be electrically sufficient.

However, different cities/states/countries have different electrical codes. I would suggest you consult with a licensed electrician.

If we are talking 120V, then a 20Amp breaker is OK for a 3/4 HP motor is this kind of application. According to the motor labeling or the manual, how many amps does the motor draw?
 
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