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

  • Thread starter Thread starter Cawagner
  • Start date Start date
  • Tags Tags
    Pump Wiring
Click For Summary
SUMMARY

The discussion centers on the wiring of a 3/4 HP submersible well pump using #10 wire from the panel to the pressure switch and #12 wire from the pump to the top of the casing. It is confirmed that this combination is electrically sufficient as long as the breaker does not exceed 20 amps. The participants emphasize the importance of adhering to local electrical codes and recommend consulting a licensed electrician for compliance. Additionally, the motor's amp draw should be verified against its labeling or manual.

PREREQUISITES
  • Understanding of electrical wiring standards
  • Knowledge of submersible well pump specifications
  • Familiarity with circuit breaker ratings
  • Awareness of local electrical codes and regulations
NEXT STEPS
  • Research local electrical codes for wiring submersible pumps
  • Learn about the amp draw specifications for 3/4 HP motors
  • Study the implications of using different wire gauges in electrical installations
  • Consult resources on best practices for wiring residential pumps
USEFUL FOR

Homeowners, electricians, and anyone involved in the installation or maintenance of submersible well pumps will benefit from this discussion.

Cawagner
Messages
1
Reaction score
2
TL;DR
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.
 
Engineering news on Phys.org
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?
 
  • Like
Likes   Reactions: berkeman, jim mcnamara and russ_watters

Similar threads

  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 19 ·
Replies
19
Views
4K
Replies
26
Views
3K
  • · Replies 1 ·
Replies
1
Views
1K
Replies
1
Views
918
  • · Replies 5 ·
Replies
5
Views
3K
Replies
16
Views
3K
  • · Replies 19 ·
Replies
19
Views
4K
  • · Replies 7 ·
Replies
7
Views
19K
Replies
28
Views
7K