Page 11 of the installation manual.Not an electric guy so question ..Where is the ground wire to the hpwc on the left side ..Am I just not seeing it ?
Received my hpwc but not installed yet ...
Thanks
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Page 11 of the installation manual.Not an electric guy so question ..Where is the ground wire to the hpwc on the left side ..Am I just not seeing it ?
Received my hpwc but not installed yet ...
Thanks
I don't think it's a question about instructions. I think it's asking about the picture in post #4 showing the side by side wall connectors, hence asking about "the HPWC on the left side". I see the ground wire in the junction box, but it kind of goes up and hides behind another wire before exiting out that conduit to the left.Page 11 of the installation manual.
Yes, you could use 3 gauge wire for a new dedicated circuit with a 14-50 outlet. The outlet is only rated at 50 amps so the circuit breaker would need to be 50 amps well. This circuit could be used for up to a 40 amp continuous draw.
Make sure your electrician calculates the loads on your panel to see if you have capacity there.
Then later you could rewire to an HPWC and set it to 40 amps, or potentially more if your panel loads allow.
Good questions. Thinking through those will save a lot of struggle. 3 gauge wire is a beast.
In general, the wires connect to the panel/circuit breaker on one side, run through conduit to the HPWC, then connect directly to the HPWC.
The pictures above show most all of the wiring needed. You can see the wires go directly into both HPWCs.
There are many youtube videos that show various installs, I think some show images the actual choices for how the wire enters and where it attaches.
Did this help?
Hi Herbert
So sorry to bother....I've decided to just do Nema 14-50 to a couple outlets using #6 and run the HPWC on a 100 amp circuit but the electrician doesn't see how to run #3 to it. What cable exactly does he run to the HPWC and does it simply attach? Thanks so much.
Installer states the connecting terminal in the HPWC is too small. But if others have done it, they've done it. I guess it's 3 runs of #3 and a ground?
It's not too small, althought it may be difficult.Installer states the connecting terminal in the HPWC is too small.
It's two runs of #3 wire--not three. It only needs the hot1 and hot2 for the 240V. Neutral is not used.I guess it's 3 runs of #3 and a ground?
They are.If the latter, it may be that the termination lugs on the HPWC are not large enough to terminate a #3 wire.
Yes, they typically do--might even be a requirement. The Tesla wall connector does have this, but I had to read through for a while to find where it says it, since it is unfortunately not listed in the specifications in the first few pages. It says on page 19 of the manual where they are describing how to attach the power wires that for the full 80A current installation on a 100A circuit, you need to use #3 gauge copper wire, so yes, the lugs would be sized to allow that, but it probably is a tight fit and involves some cursing and scraped knuckles to get it to work.Sorry, I did not get this post before my reply, so it is an issue of lug size. The issue is that electrical termination equipment will typically specify the maximum and minimum wire size that may be terminated. I do not know what this is for the HPWC,
I don't see any mention of GFCI in these posts. I know the thread is about wire size, but dont garages require all outlets to be protected by GFCI?
I don't see any mention of GFCI in these posts. I know the thread is about wire size, but dont garages require all outlets to be protected by GFCI? I don't see any 14-50 GFCI outlets for sale anywhere so it must be installed using GFCI circuit breaker.
That functionality inside the onboard charger in the car does nothing for when people are plugging a UMC into an outlet. That is why outlets would have it.GFCI functionality is incorporated in the car's charger. HPWC installations do not require a GDCI breaker.
Greetings
I have a 2016 X P90D, and I bought a Gen II HPWC from a guy that was manufactured Jan 2019. I'm about to have it installed by running a dedicated line to it.
Any suggestions on the cable and breaker?
I'm having three other lines installed into other locations for future use as well as being used with my mobile charger. Love any input on that too. I want to be ready for what comes down the pipe.
Thanks!