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Thread: Polarity of 3 phase receptacle

  1. #1
    Join Date
    Feb 2015
    Location
    Orlando, FL
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    3

    Polarity of 3 phase receptacle

    Is it legal to reverse the polarity connection of the receptacle to accommodate power for a new refrigerated case imported from Germany?
    The refrigerated case plug cannot be modified at this time to reverse the polarity since it will void UL listing and warranty of the case.
    For the motor of the case to run correctly the polarity requires to be reversed.

    Please advise.

    Thank you in advance.

  2. #2
    Yes you can change rotation at the receptacle if need be. I'm unaware of any coffee that requires the rotation at the recep be any certain way.

    Jason
    Using Tapatalk

  3. #3
    Not sure why auto correct put in "coffee" , the word should be code. Lol

    Jason
    Using Tapatalk

  4. #4
    Join Date
    Feb 2015
    Location
    Orlando, FL
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    3
    I guess you just needed coffee

  5. #5
    Join Date
    Mar 2008
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    Michigan. It's a beautiful penninsula, I've looked around.
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    9,429
    I once worked in a factory where one side of the department was one rotation, and the other reverse. If we wanted to use a portable filter system, we had to change the wiring in the receptacle to match the side of the building we would be using it in.
    Cheers and Stay Safe,

    Marky the Sparky

  6. #6
    Join Date
    Oct 2009
    Location
    Austin, TX, USA
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    8,485
    Quote Originally Posted by K8MHZ View Post
    I once worked in a factory where one side of the department was one rotation, and the other reverse. If we wanted to use a portable filter system, we had to change the wiring in the receptacle to match the side of the building we would be using it in.
    Was the building located right on the equator?

  7. #7
    Join Date
    Mar 2008
    Location
    Michigan. It's a beautiful penninsula, I've looked around.
    Posts
    9,429
    Quote Originally Posted by ggunn View Post
    Was the building located right on the equator?
    Sometimes it felt like it. It was an aluminum die cast facility.
    Cheers and Stay Safe,

    Marky the Sparky

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