115v 2 wire well pump with 2 blacks and a green

[mroth_3]

Hello! I bought a red lion well pump. 115V, 2 wire. I also bough a red lion pressure switch. the pump has 2 blacks and a green. The two blacks are identical looking. I was expecting a black and a white. Can anybody provide me information on how to tell which black wire should be used as the neutral? Does it not matter?

If I cant figure it out, I'm going to run the hot from the panel to the pressure switch to one of the black leads on the pump. Then connect the neutral to the other black one (not run through the pressure switch). And hope for the best. I dont think there is any reason to run the neutral through the pressure switch since it is just a contactor to interrupt the power. I'm not extremely tech savy so I'm going out on a limb here.

 

[Craigpump]

Green is for ground obviously, the other two it doesn't matter which goes to power or to neutral.

I always interrupt both lines with the pressure switch.

 

[Sponsor]

 

[mroth_3]

Green is for ground obviously, the other two it doesn't matter which goes to power or to neutral.

I always interrupt both lines with the pressure switch.

Thank you so much for the reply! I sort of was wondering if it didn't matter. Do I HAVE to interrupt both lines with the pressure switch? I was hoping to put an outlet next to the well so I installed 10-3 w/ ground. If I interrupt the neutral that cant happen.

 

[Craigpump]

YOU can do it anyway you want, but I always interrupt both lines. Plus it might be code to do so.

 

[Reach4]

See https://terrylove.com/forums/showthread.php?45977-14-3-strange-usage
http://www.ecmag.com/section/codes-standards/switching-neutral-ok
Check your PMs.