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Tesla model S UMC with J1772 & JESLA(tm) conversion
http://www.myrav4ev.com/forum/viewtopic.php?f=8&t=349
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Author:  BBQ [ Tue May 07, 2013 5:56 am ]
Post subject:  Tesla model S UMC with J1772 & JESLA(tm) conversion

Here is a link to get the JESLAtm 40 amp portable J1772 charging solution for your Rav4 EV:

viewtopic.php?p=11006#p11006

***************************************************

My friend did this for me mod. It works 100%.

The UMC comes with a 15A & 50A NEMA connector. I use both @ 240V & draw 12A & 40A from respective outlet. The UMC current draw is controlled by the $45 input adaptor so don't cut it out. Voltage of the UMC input is free swing from 110V-240V 50-60Hz.


(I feed the Tesla UMC NEMA 5-15 connector through a NEMA L6-20P to NEMA 5-15 dongle to get my 12A @ 240V)


Image

Image

Yes, I take 40A out of this NEMA 14-50 wall outlet with room to spare. :D

Image

Since our RAV4 has the same 10kW on board charger from tesla, I don't see why we cannot use the same model s UMC spec below. Why settle with 9.6kW from leviton fix station when you can also get portability & upto 10kw from "OEM"?

http://www.teslamotors.com/charging#/highpower

Author:  fooljoe [ Tue May 07, 2013 8:21 am ]
Post subject:  Re: Tesla model S UMC with J1772 connector

Awesome! Can you post pic #2 with higher resolution? So it looks like you just chopped the wire near the Model S connector and connected a new J-plug. Which J-plug did you get, and from where? And does the UMC cable have 5 wires or just 4?

Author:  TonyWilliams [ Tue May 07, 2013 10:28 am ]
Post subject:  Re: Tesla model S UMC with J1772 connector

BBQ wrote:
My friend did this for me....

Since our RAV4 has the same 10kW on board charger from tesla, I don't see why we cannot use the same model s UMC spec below. Why settle with 9.6kW from leviton fix station when you can also get portability & upto 10kw from "OEM"?



Nice to see others doing this. A couple notes, though. Don't cut the power supply end to put on an L6-20/30/50. If you look, there's an extra pin in there that tells the EVSE what amperage to pull from the wall. For 40 amps in the NEMA 14-50 Tesla plug, it measures 9k ohms. Splicing in something else might leave your EVSE dead.

Also, the EVSE has nothing to do with 9.6kW or 10kW, assuming it is rated for 40 or more amps. The difference is the voltage:

9.6kW = 40 amps * 240 volts
10kW = 40 amps * 250 volts
10kW = 36 amps * 277 volts (max volts for charger, amps are reduced even with 40 amp EVSE)

Author:  occ [ Tue May 07, 2013 5:31 pm ]
Post subject:  Re: Tesla model S UMC with J1772 connector

Very nice!!

Could you share what and where did you get that J1772 connector nozzle?

Author:  BBQ [ Tue May 07, 2013 6:35 pm ]
Post subject:  Re: Tesla model S UMC with J1772 connector

fooljoe wrote:
Awesome! Can you post pic #2 with higher resolution? So it looks like you just chopped the wire near the Model S connector and connected a new J-plug. Which J-plug did you get, and from where? And does the UMC cable have 5 wires or just 4?


Uploaded HD Pic#2.

We use the leviton 30A jack from leviton web page and just chop the cable off. We can't find it anywhere else.

It seems like a 5 wires on UMC cable.

Author:  BBQ [ Tue May 07, 2013 6:36 pm ]
Post subject:  Re: Tesla model S UMC with J1772 connector

TonyWilliams wrote:
BBQ wrote:
My friend did this for me....

Since our RAV4 has the same 10kW on board charger from tesla, I don't see why we cannot use the same model s UMC spec below. Why settle with 9.6kW from leviton fix station when you can also get portability & upto 10kw from "OEM"?



Nice to see others doing this. A couple notes, though. Don't cut the power supply end to put on an L6-20/30/50. If you look, there's an extra pin in there that tells the EVSE what amperage to pull from the wall. For 40 amps in the NEMA 14-50 Tesla plug, it measures 9k ohms. Splicing in something else might leave your EVSE dead.

Also, the EVSE has nothing to do with 9.6kW or 10kW, assuming it is rated for 40 or more amps. The difference is the voltage:

9.6kW = 40 amps * 240 volts
10kW = 40 amps * 250 volts
10kW = 36 amps * 277 volts (max volts for charger, amps are reduced even with 40 amp EVSE)


Thank you for the correction! :oops:

Author:  fooljoe [ Tue May 07, 2013 8:15 pm ]
Post subject:  Re: Tesla model S UMC with J1772 connector

BBQ wrote:
We use the leviton 30A jack from leviton web page and just chop the cable off. We can't find it anywhere else.

It seems like a 5 wires on UMC cable.
Cool, but aren't you worried about passing 40A through a 30A-rated Jplug? Seems a recipe for disaster...

Author:  khaliss [ Tue May 07, 2013 8:59 pm ]
Post subject:  Re: Tesla model S UMC with J1772 connector

What's the total cost on this project? I'd love to see a step-by-step build guide on a printable doc (PDF) someday =)

Author:  TonyWilliams [ Tue May 07, 2013 9:32 pm ]
Post subject:  Re: Tesla model S UMC with J1772 connector

There are sources for official 40-75 amp J1772 handles. I'm not sure they are better than a quality ITT or Yazaki 30 amp one... the pins connecting to your car are obviously the same.

Try www.TucsonEV.com

Author:  fooljoe [ Tue May 07, 2013 9:40 pm ]
Post subject:  Re: Tesla model S UMC with J1772 connector

TonyWilliams wrote:
There are sources for official 40-75 amp J1772 handles. I'm not sure they are better than a quality ITT or Yazaki 30 amp one... the pins connecting to your car are obviously the same.

Try http://www.TucsonEV.com
Yeah, that's where I got my 70 amp cordset for my CS-60. What else besides the pins would differ in a 70 amp vs 30 amp Jplug? There must be some reason for the different rating.

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