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UMC - outdoor cabinet solutions ?

AustinP

Active Member
Apr 6, 2015
1,155
913
Belgium
I recently had my UMC replaced by the SC (free, thanks Tesla), as it would not open the charge port anymore (6 months old)
Having a look at it, the SC service agent told me the cable was filled with water and wondering.
As I told I leave the UMC always plugged in outside (not on the ground, hanging), it is indeed subject to rain and bad weather.
He confirmed the UMC was supposed to be resistent enough to withstand this, but still recommended I put some cabinet around it.

So, I'm looking at solutions. What's yours ? Thanks for the help! :smile:

If this question has already been asked & discussed in other threads, I could not find them. Don't hesitate to correct me and point me in the right thread.
 

KJD

Supporting Member
Dec 14, 2013
1,273
903
SLC, UT
The cord on the HPWC looks to me a lot more robust than the UMC. Have you considered buying a HPWC instead, they are outdoor rated.
 

jerry33

(S85-3/2/13 traded in) X LR: F2611##-3/27/20
Mar 8, 2012
19,516
21,709
Texas
My case is somewhat different because the receptacle is inside and only the car connection is outside. When unplugged, it's all inside. If it's all outside, the best case is to get an HPWC or Clipper Creek EVSE. Mostly the UMC is for non-inclement weather charging as there are several warnings in the users guide about rain and snow.
UMC_water.png
 
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David29

Supporting Member
Aug 1, 2015
2,150
1,764
DEDHAM, MA
Can anyone provide details on the mounting instructions, size, cable openings, etc., for the HPWC? When I look on the Tesla web site, it says that detailed instructions come with it. But I'd like to show my electrician in advance to help him estimate installation cost and help me decide if I want one or to go a different route.
Thanks!
 

dhrivnak

Active Member
Jan 8, 2011
4,389
3,516
NE Tennessee
A lower cost installation is to put a plug on the HPWC and then plug the unit into your NEMA 14-50. You will need to turn down the amperage on the HPWC to 40 amps but I hear that is easy. The unit is about 9 inches x 18.
 

David29

Supporting Member
Aug 1, 2015
2,150
1,764
DEDHAM, MA
Then I'd need to mount and protect both the 14-50 receptacle and the HPWC plus its cable. I am not sure how I would mount the outlet or connector but I was thinking of using a wooden post, with an electrical box fastened to it. If I had an outlet plus the HPWC, I would be concerned about how large a post I would need to install to support all this. I do not want anything too wide because it will be difficult to support, or too high to be convenient.
 

Rocky_H

Well-Known Member
Feb 19, 2015
5,848
6,684
Boise, ID
Can anyone provide details on the mounting instructions, size, cable openings, etc., for the HPWC? When I look on the Tesla web site, it says that detailed instructions come with it. But I'd like to show my electrician in advance to help him estimate installation cost and help me decide if I want one or to go a different route.
Thanks!

It’s on Tesla’s website at the bottom of this page about Model S charging. They have instruction pdf files for the 14-50 install and the HPWC install.

Tesla Charging | Tesla Motors
 

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