Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Tesla Wall Connector with J1772 plug instead of Tesla proprietary plug

miimura

Well-Known Member
Aug 21, 2013
6,477
6,225
Los Altos, CA
Yes, it looks like a Tesla Wall Connector which does not have a J1772 plug, but maybe Tesla modified that one.

I assume Tesla would pay for the electricity provided in that stall.

Sad to see that the charging cable was just tossed on the ground in a heap by whoever used it last.
Native J1772 wall connectors are apparently a real thing provided by Tesla.

lDui1QedM56n1VprQj5C-Nxxxng9n8jLQg9jMDkvHCM.jpg

from Reddit. Tesla wall connector (HPWC) with native J1772 connector : teslamotors
 

mociaf9

Active Member
Oct 18, 2018
2,821
5,787
CA
[pic]
LIB, MR DUCKS

image from imgur.com/a/SEWU...
Unfortunately, it's not sold directly to the public. I think it's only offered through their workplace or destination charging programs. And, of course, they have access internally to put them in at supercharger locations if the host property requests some generic J1772 L2 chargers--likely the case in this particular instance.
 

Watts_Up

Active Member
Mar 4, 2019
3,617
2,451
In a galaxy far, far away
Unfortunately, it's not sold directly to the public. I think it's only offered through their workplace or destination charging programs. And, of course, they have access internally to put them in at supercharger locations if the host property requests some generic J1772 L2 chargers--likely the case in this particular instance.
When looking at Tesla Find Us for Destination Chargers, I noticed a combination of 8 kW and 16 kW.

I wonder if Tesla destination chargers are then:

Tesla Plugs (16 kW),

Tesla with J1772 (8 kW),

or a combination of Tesla plugs (16 kW) and other OEM J1772 (Generaly 7.7 kW) ?
 
Last edited:
  • Informative
Reactions: APotatoGod

miimura

Well-Known Member
Aug 21, 2013
6,477
6,225
Los Altos, CA
No connection. The internal hardware of the two models is essentially exactly the same, it just uses a different connector. The only difference between the 16 kW and 8 kW EVSE is the electrical circuit it is on.
The J1772 cable and connector are only rated for 40A, so the setting should not exceed that. Most Wall Connectors with Tesla proprietary handles are rated for 80A. The version with the factory fitted 14-50 plug is an exception. It was also limited to 40A, possibly even fixed without internal adjustment.
 

mociaf9

Active Member
Oct 18, 2018
2,821
5,787
CA
The J1772 cable and connector are only rated for 40A, so the setting should not exceed that. Most Wall Connectors with Tesla proprietary handles are rated for 80A. The version with the factory fitted 14-50 plug is an exception. It was also limited to 40A, possibly even fixed without internal adjustment.
Interesting, I didn't realize they had different ratings. So, the result is that any 16 kW stations you know are Tesla connectors. But the 8 kW ones can be either Tesla or J1772.
 

miimura

Well-Known Member
Aug 21, 2013
6,477
6,225
Los Altos, CA
Interesting, I didn't realize they had different ratings. So, the result is that any 16 kW stations you know are Tesla connectors. But the 8 kW ones can be either Tesla or J1772.
The vehicle cable on the Wall Connector version with the 14-50 plug is notably thinner than the one on the normal Wall Connector, more similar to the Mobile Connector's cable, but I haven't directly compared them. It may even use the same cable and handle assembly as the Gen1 Mobile Connector (and Corded Mobile Connector) that is also rated for 40A.
Better stop now. The OT thread police are likely to show up at any moment.
 
  • Funny
Reactions: APotatoGod

ecarfan

Well-Known Member
Sep 21, 2013
19,342
14,008
West Vancouver, British Columbia
When looking at Tesla Find Us for Destination Chargers, I noticed a combination of 8 kW and 16 kW.

I wonder if Tesla destination chargers are then:

Tesla Plugs (16 kW),

Tesla with J1772 (8 kW),

or a combination of Tesla plugs (16 kW) and other OEM J1772 (Generaly 7.7 kW) ?
No connection. The internal hardware of the two models is essentially exactly the same, it just uses a different connector. The only difference between the 16 kW and 8 kW EVSE is the electrical circuit it is on.
 

WhipperDipper

Member
May 17, 2020
18
9
NV
Hey there, looking to simplify my home charging setup (Model 3 and Leaf). Can I install a J1772 cable (plug and cable) into a Tesla HPWC?

Have an old HPWC with bad plug on end, and a JB40 with a smoked contractor. Looking to move 14-50 cable over to HPWC for supply, and J1772 cable/plug to work with the vehicles. Would use adapter for Model 3. Thanks for assistance.
 
  • Like
Reactions: APotatoGod

arnolddeleon

Supporting Member
Supporting Member
Jul 21, 2012
886
945
SF Bay Area
Hey there, looking to simplify my home charging setup (Model 3 and Leaf). Can I install a J1772 cable (plug and cable) into a Tesla HPWC?

Have an old HPWC with bad plug on end, and a JB40 with a smoked contractor. Looking to move 14-50 cable over to HPWC for supply, and J1772 cable/plug to work with the vehicles. Would use adapter for Model 3. Thanks for assistance.

Yes, it's been done:

UMC conversion to J1772 (JESLA)

Make sure the HPWC settings do not exceed the rating of the J1772 plug that you use.
 
  • Informative
Reactions: APotatoGod

WhipperDipper

Member
May 17, 2020
18
9
NV
Looking to do it on my own. I understand it’s been done before. Would it just involve wiring up the J1772 cable into HWPC? Power, ground, pilot...
 

arnolddeleon

Supporting Member
Supporting Member
Jul 21, 2012
886
945
SF Bay Area
Looking to do it on my own. I understand it’s been done before. Would it just involve wiring up the J1772 cable into HWPC? Power, ground, pilot...

That sounds roughly right, you should have 2 powers, L1 and L2. I was assuming you were planning on doing it yourself, hence the caution about setting the power output/pilot signal on the HPWC to a setting appropriate for the cable/plug you are using.
 
  • Informative
Reactions: APotatoGod

WhipperDipper

Member
May 17, 2020
18
9
NV
Using a Gen 1 HPWC. Anyone know what the blue and purple wires are coming out of charging cable? Diagram or prior knowledge would be great instead of having to pin it out myself.
 
  • Helpful
Reactions: SW2Fiddler

WhipperDipper

Member
May 17, 2020
18
9
NV
Extra wires in a HPWC cable are for temperature sensing and powering the RF transmitter to open the charge port.

Now that I think about it, not having the temp sensor connected may interfere with proper operation with a pre-made J1772 cable on a HPWC.

Gen 1 connector only has 5 connectors coming out of corded end: two power, one ground, blue and purple wire.
Will pinout each one to verify, but have hope this can be working relatively easily. If temp sensor becomes an issue, can work around this. Not required for proper operation, J1772 doesn’t have it. Just an add’t feature that isn’t needed. Thanks for the info.
 
  • Like
Reactions: APotatoGod

arnolddeleon

Supporting Member
Supporting Member
Jul 21, 2012
886
945
SF Bay Area
Gen 1 connector only has 5 connectors coming out of corded end: two power, one ground, blue and purple wire.
Will pinout each one to verify, but have hope this can be working relatively easily. If temp sensor becomes an issue, can work around this. Not required for proper operation, J1772 doesn’t have it. Just an add’t feature that isn’t needed. Thanks for the info.

One of the wires should be the pilot, easily tested with a continuity tester, and the other is likely the power to the transmitter.
 

Products we're discussing on TMC...

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top