TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Best height off ground for NEMA 14-50 outlet & UMC?

Discussion in 'Model S: Battery & Charging' started by SteveW25561, Jul 28, 2013.

  1. SteveW25561

    SteveW25561 Member

    Joined:
    Jun 10, 2013
    Messages:
    564
    Location:
    Vancouver, Canada
    What height off the ground are people installing g the NEMA14-50 outlet?

    I know there's a minimum suggested height (I can't find it right now -- was it something like 14"??), but I was wondering if there is a good height for the plug such that the UMC doesn't pull so hard on the receptacle and angle out due to the weight of the cable and its attached transformer box.

    I don't have my car or cable yet, but I was thinking of a plug height that has the UMCs transformer box just a little bit above the ground, still allowing a gentle bend of the UMC so that the rest of the cable runs along the ground to the car. That way the weight of the cable and box aren't putting as much traction on the plug, and they are slightly supported by the cable run on the ground.
     
  2. bollar

    bollar Disgruntled Member

    Joined:
    May 1, 2013
    Messages:
    2,242
    Location:
    Southlake, TX
    I set mine at 48 inches, which happens to be the maximum height for ADA compliance. That's not a concern if this is in your house, but I found it a convenient height.

    15 inches is the minimum, so feel free to use the height that works best for your needs.
     
  3. Btrflyl8e

    Btrflyl8e Active Member

    Joined:
    Mar 24, 2013
    Messages:
    2,276
    Location:
    Seminole, Florida, United States
    I installed mine just below shoulder height for me to make it easier to plug/unplug if necessary. It doesn't seem to be an issue with the weight of the cable and box at all.
     
  4. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    2,150
    Location:
    NE Tennessee
    I second the 48" height. Very easy to reach and the weight of the cord is a non-issue.
     
  5. Nickjhowe

    Nickjhowe Member

    Joined:
    Apr 8, 2012
    Messages:
    213
    Kinda depends on how you want to run your cable. I mounted mine low because I lay the cable out across the floor, and I can't afford to waste 4 ft going up the wall. I mounted my cable like so:

    8537541633_ff2470d846.jpg
    Uploaded from Photo Slice by nickjhowe, on Flickr
     
  6. Nickjhowe

    Nickjhowe Member

    Joined:
    Apr 8, 2012
    Messages:
    213
    Kinda depends on how you want to run your cable. I mounted mine low because I lay the cable out across the floor, and I can't afford to waste 4 ft going up the wall. I mounted my cable like so:

    8537541633_ff2470d846.jpg
    Uploaded from Photo Slice by nickjhowe, on Flickr
     
  7. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

    Joined:
    Jun 21, 2012
    Messages:
    7,019
    Standards vary by state and type of construction.

    The NEC does not dictate receptacle height, although the ADA and some building codes do. Commercial and public housing building codes in CA have a minimum 15" - 48" height, for example. Generally, in your own home you are permitted to place it at whatever height you desire. There is one technicality, which is discussed in the FAQ below. The 14-50 + UMC is considered an appropriate disconnect for NEC article 625, and it must be "accessible", which is subjectively determined by the AHJ / inspector. There is also a requirement that the "coupling means" (the Tesla end of the UMC cable) be installed and stored between 18" and 48".

    The FAQ I maintain, located here, discusses this. See the question entitled "AT WHAT HEIGHT SHOULD I INSTALL MY 14-50 OUTLET?"
     
  8. gaswalla

    gaswalla P4201/85/airsusp/pano/19i

    Joined:
    Sep 23, 2012
    Messages:
    1,192
    Location:
    San Diego
  9. PhilBa

    PhilBa Active Member

    Joined:
    Apr 20, 2013
    Messages:
    1,355
    Location:
    Seattle
    That will work but be aware that the coupler (connector, nozzle, whatever) will never sit nice and tidy like it shows in the picture. The tension/weight of the coiled up cable will push it to one side or the other and make it easy for a light brush to knock it out of the holder. In the worst case, it won't even stay in the holder. Bad design. Tesla needs to redesign that one.
     
  10. Andrew

    Andrew Model S #6151

    Joined:
    Mar 11, 2013
    Messages:
    344
    Location:
    Santa Monica, CA
  11. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

    Joined:
    Mar 8, 2012
    Messages:
    12,753
    Location:
    Texas
    I did 48" too, but Tesla says minimum 24" IIRC.
     

Share This Page