Wire gauge
#1
04-02-17, 08:26 PM
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Wire gauge
Ok here is my situation I have 12/2 wire run to well pump which is 100' from panel box.The pump is a 115 amp pump not 220.
This is on a 30 amp breaker and these are the items I have running from this one breaker.Well pump, 2 - 5000 btu air cond. and ceiling fan,Sterio system all of this could be running at one time on some days.Do I need larger breaker and larger wire or is ok like it is.Thanks for your help
This is on a 30 amp breaker and these are the items I have running from this one breaker.Well pump, 2 - 5000 btu air cond. and ceiling fan,Sterio system all of this could be running at one time on some days.Do I need larger breaker and larger wire or is ok like it is.Thanks for your help
#2
04-02-17, 09:05 PM
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You're running the well pump, 2 A/C's, a ceiling fan and a stereo all on one 12/2 cable on a 30A breaker ?
If that is correct.... you do need larger wire with the correct circuit breaker.
#12 wiring should only be connected to a 20A breaker.
I'm trying to understand what you are doing. Is the pump house a club house ?
If that is correct.... you do need larger wire with the correct circuit breaker.
#12 wiring should only be connected to a 20A breaker.
I'm trying to understand what you are doing. Is the pump house a club house ?
#3
04-02-17, 09:08 PM
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This is on a 30 amp breaker and these are the items I have running from this one breaker.Well pump, 2 - 5000 btu air cond. and ceiling fan,Sterio system all of this could be running at one time on some days.
If the items are scattered throughout your house you need to run a dedicated circuit that is just for the pump and maybe a light.
If this is all at the pump house your best solution is to instal a minimum of a 40 amp subpanel connected to a 240v 40 amp breaker in your main panel. You will need either 8-3 UF cable direct buried or four #8 THWN wires (two back, one white, one green) in conduit. I'd suggest a 100 amp main breaker panel kit for the subpanel at the well.
Last edited by ray2047; 04-02-17 at 09:27 PM.
#5
04-03-17, 02:40 AM
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THanks for all the help.I went ahead and put well pump on a 20 amp breaker and nothing else on this but well pump.The other items I had on this right now is not connected to any breaker. I will install another breaker for 2 air conditioner ceiling fan and lights.The 2 air conditioners are 115 volts .What size breaker do I need to use and also wire size.Thanks very much for your help.
#6
04-03-17, 02:48 AM
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Ideally one 15 or 20 amp circuit for each A/C. Then split the lights and ceiling fan between the circuits. Assumes the A/Cs draw 7 amps or less (Usually a 5000 BTU will.) #14 for 15 amps and #12 for 20 amps. Since this is new wiring I suggest 20 amp for each circuit. That will give you a little future proofing. (A 5000 BTU doesn't cool very well and you may need larger ones.)
