Wiring connections on a new 120v pool motor
#1
05-12-16, 03:01 PM
Join Date: Jan 2006
Location: Kansas
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Wiring connections on a new 120v pool motor
I am putting a new pool motor on my pool pump. The motor has a dial to select between 115 and 220 volts. I have selected 115 because that is the suppy voltage.
My question is: Where to put the hot and where to put the neutral. The diagram just shows "line" coming off of L1 and L2.
My question is: Where to put the hot and where to put the neutral. The diagram just shows "line" coming off of L1 and L2.
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#3
05-12-16, 03:13 PM
Join Date: Jan 2006
Location: Kansas
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I've gotten conflicting advice from different people. Some say polarity matters and some say it doesn't. I just talked to the company I bought it from and the guy said neutral needs to go on L2. When I asked him how he knew that, he said because he's wired a lot of them. Then he coughed twice and hung up on me. 
#5
05-12-16, 04:36 PM
I have selected 115 because that is the suppy voltage.
#7
05-13-16, 09:05 AM
By NEMA standard, low voltage (less than 600V) motors are actually rated at 115V, 230V or 460V with a +/- 10% acceptable tolerance. This accounts for the anticipated 5% branch circuit voltage drop from the nominal 120V, 240V or 480V supply voltages plus a normal variation in voltage coming from the grid.
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