Can you change NEMA 14-5 to Wall Connector?

[PtG62901]

If you have a NEMA 14-5 sitting behind a 50 breaker, can you just drop in a Tesla Wall Connector easily?

Thanks for any help.

 

[Brass Guy]

I think the wiring is not difficult, as long as you have enough slack. Of course set the jumpers for a 50A circuit.

 

[PtG62901]

I think the wiring is not difficult, as long as you have enough slack. Of course set the jumpers for a 50A circuit.

Thank you. I have an electrician to do the work. Burning down the house is bad form. Lol.

It seems like same wires, same breaker, just different at receptical.

 

[Brass Guy]

The wall connector can accept different wire sizes, and larger than the highest standard outlet. So if you have an outlet already, you can just connect the wall connector in its place.

 

[PtG62901]

Thank you, that was just what I wanted to know.

 

[anxman]

To be clear, it doesn't plug directly into the NEMA 14-50. The HPWC accepts the same electrical lines, so the installation will be trivial for your electrician though.

 

[PtG62901]

Thank you. Sounds like if the wire isn't cut very short in the box, it drops in. My plug is run in conduit, so if that slack isn't there, things could get dicey. That seem right?

 

[Brass Guy]

It just means an electrician would have to splice the wires. There are connectors for #6 wire, but they're more expensive than wire nuts.

 

[ABCCBA]

I am hoping it was a typo and you meant a 14-50 outlet. If so, it IS NOT the same wiring! A 14-50 is a four-wire outlet. Two 120VAC hot leads, a neutral and a ground.

The Tesla HPWC is a three- wire device. Two 120VAC hot wires and a ground. There is no neutral. So, the neutral would need to be disconnected in the panel and taped on both ends.

For a licensed electrician, it is an easy swap.

 

[eladts]

Another option is buying the Corded Mobile Connector and plugging it semi-permanently in the NEMA 14-50 socket. This way no installation is needed.

 

[PtG62901]

Another option is buying the Corded Mobile Connector and plugging it semi-permanently in the NEMA 14-50 socket. This way no installation is needed.

Reading the descriptions, it seems like the Wall Connector would be superior. It is cheap enough to bring in the electrician for an hour. The 24' cord seems like a good idea too.

Thank you finding a different option.

 

[mknox]

I went to Home Depot, bought a stove 14-50 cord set and wired it into my HPWC, setting the dip switches to 50 amps (40 amps delivered). I mounted the HPWC to the wall near the 14-50 outlet and plugged it in. Depending on where you live, this might fall into an electrical code grey area, but as far as I can tell, there is nothing prohibiting it.

 

[davewill]

Yes you can certainly use a 14-50 pigtail. However, since the install instructions for the HPWC don't specify this as an option, some don't think it is kosher to do this. My Blink came with a 6-50 pigtail, and ClipperCreek sells their EVSEs with a variety of plugs on them, and I personally think it's fine. But if you want to hard wire it, it's almost as easy as installing a cord.

You just get a cover plate for the outlet box that has a hole for conduit, remove the outlet, and use the box as a junction box. The conduit gets connected to your HPWC and the appropriate wire is connected to the wires used for the outlet, run through the conduit and terminated in the HPWC. Have an electrician do it if you are the slightest bit uncertain.