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Thread: 3phase weather proof receptacle

  1. #1
    Join Date
    Aug 2018
    Location
    North Carolina
    Posts
    5

    3phase weather proof receptacle

    I just done a job to up grade receptacles from single phase to 3 phase. These receptacles are used to keep the reefer units on milk trucks running at night. They are located outside in the parking lot. So what I used was standard twist lock Nema L15-30-R 30amp 250v 3phase receptacles. We had them in weather resistant boxes and in use covers. So when the inspector came out he failed us because the receptacles are not weather resistant. I called my supplier and he told me they don't even make that receptacle weatherproof. The only one we could find that would be weatherproof was a Hubble and it is made for boat marinas. I have never ran into this problem before just would like to hear some ideas and thoughts about it.

  2. #2
    Join Date
    Dec 2016
    Location
    Royal City, WA
    Posts
    209

  3. #3
    Join Date
    Dec 2016
    Location
    Royal City, WA
    Posts
    209
    A plug or connector for a cord is about $80 here. A flanged receptacle is about $100. Very common in agricultural Irrigstion. We install one on just about every Pump panel. They are used to power portable chemical injection pumps.

  4. #4
    Join Date
    Mar 2016
    Location
    The Motor City, Michigan USA
    Posts
    826
    Is the inside of a weather-resistant box with a raintight-while-in-use cover considered a wet location?

  5. #5
    Join Date
    Aug 2018
    Location
    North Carolina
    Posts
    5
    Quote Originally Posted by drcampbell View Post
    Is the inside of a weather-resistant box with a raintight-while-in-use cover considered a wet location?
    According to the inspector it is. I asked the same question. Done this in other jurisdictions and never had a problem until now.

  6. #6
    Join Date
    Nov 2010
    Location
    Fort Collins, Colorado
    Posts
    2,711
    Quote Originally Posted by Rdcowart View Post
    I just done a job to up grade receptacles from single phase to 3 phase. These receptacles are used to keep the reefer units on milk trucks running at night. They are located outside in the parking lot. So what I used was standard twist lock Nema L15-30-R 30amp 250v 3phase receptacles. We had them in weather resistant boxes and in use covers. So when the inspector came out he failed us because the receptacles are not weather resistant. I called my supplier and he told me they don't even make that receptacle weatherproof. The only one we could find that would be weatherproof was a Hubble and it is made for boat marinas. I have never ran into this problem before just would like to hear some ideas and thoughts about it.
    The weather-resistant listing requirement only applies to 15 and 20 amp, 125/250 volt nonlocking receps. Look at 406.9.

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