Adapter to use 240v Stove outlet for charging?

[Pjlightning]

I poked around but couldn’t find any answer to this question in the threads:

what adapter is needed to match the home charger that comes in the frunk, with the outlet of a stove 240v ?

PITA but I have to find some bridge until the Charge Station Pro arrives….

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[Stlww18]

You can find them on Amazon but they pose some issues since those old stove plugs don’t have a dedicated ground. A fault with the neutral could energize the chassis of the truck

 

[Amps]

10-50P to 14-50R

Heed the warnings. Clearly mark it FOR EV USE ONLY.

https://www.amazon.com/dp/B07XJM4SRJ/

https://www.amazon.com/Conntek-EV1050T-Adapter-compatible-Vehicles/dp/B00STD9SJY

 

[hturnerfamily]

actually, the stove plug HAS a ground, but it has no Neutral, as one is not needed, just like your EVSE is only using 3 wires, with no Neutral, even though the NEMA 14-50 plug/outlet has the 4th prong. Neutrals are only needing when there can be a mismatch usage of power between the hot lines - like on a large RV or Motorhome. They are also used commonly now for NEW electric Clothes Dryers, although many older clothes dryers and outlets are still using the 3-prong type, with no Neutral, and with no issues. It was just a change for electric dryers to have a Neutral, just in case, although, again, the Neutral wire is not really needed for any 'power' requirements, but just another exit 'path' since an appliance is typically METAL and something you can readily 'touch'.

Any adapter that is designed to adapt from your OUTLET to your EVSE/NEMA 14-50 plug will work just fine. Don't worry about whether one is only 3 wires and the other is 4.

 

[Pjlightning]

You can find them on Amazon but they pose some issues since those old stove plugs don’t have a dedicated ground. A fault with the neutral could energize the chassis of the truck

thanks-
This is a little frightening ! I certainly don’t want to blow up my new truck……but now that I read The Amazon reviews of some of these , they seem to work flawlessly for Tesla and even a mustang owner

 

[Pjlightning]

10-50P to 14-50R

Heed the warnings. Clearly mark it FOR EV USE ONLY.

https://www.amazon.com/dp/B07XJM4SRJ/

https://www.amazon.com/Conntek-EV1050T-Adapter-compatible-Vehicles/dp/B00STD9SJY

Thanks for these links. Looks exactly like what I need. And I just got one that will be delivered tomorrow!

 

[Pjlightning]

actually, the stove plug HAS a ground, but it has no Neutral, as one is not needed, just like your EVSE is only using 3 wires, with no Neutral, even though the NEMA 14-50 plug/outlet has the 4th prong. Neutrals are only needing when there can be a mismatch usage of power between the hot lines - like on a large RV or Motorhome. They are also used commonly now for NEW electric Clothes Dryers, although many older clothes dryers and outlets are still using the 3-prong type, with no Neutral, and with no issues. It was just a change for electric dryers to have a Neutral, just in case, although, again, the Neutral wire is not really needed for any 'power' requirements, but just another exit 'path' since an appliance is typically METAL and something you can readily 'touch'.

Any adapter that is designed to adapt from your OUTLET to your EVSE/NEMA 14-50 plug will work just fine. Don't worry about whether one is only 3 wires and the other is 4.

Thanks for this great technical input. Very helpful.
& Phew…..a big relief.

Now I can go ahead with one from the Amazon link that was posted earlier.

 

[Amps]

Thanks for this great technical input.

Might want to ignore the part in Post #4 about neutrals and grounds.

@Stlww18 is correct, there is a risk of using these incorrectly. It should work fine for temproary EV charging. Similar warnings are on the Amazon listing for the cheaper one.

@hturnerfamily would probably realize that NEMA 10- series receptacles have a neutral if he would look at the 120V ratings of incandescent appliance light bulbs. NEMA 6- receptacles are grounded and have no neutral. People have been shocked to find some of this stuff out the hard way.

 

[AT193]

Definitely check out Splitvolt. I just listened to a podcast with their founder And it seemed like a pretty safe and well engineered system. You can plug the stove and the EV charger in at the same time and it will automatically switch between the two when you need it to. It also has some internal safety mechanisms to protect the house. You can order it with various plugs and set the max voltage accordingly. Not sure if thats what you want since it's more complex than just an adapter. https://www.splitvolt.com/shop/

 

[Pjlightning]

Might want to ignore the part in Post #4 about neutrals and grounds.

@Stlww18 is correct, there is a risk of using these incorrectly. It should work fine for temproary EV charging. Similar warnings are on the Amazon listing for the cheaper one.

@hturnerfamily would probably realize that NEMA 10- series receptacles have a neutral if he would look at the 120V ratings of incandescent appliance light bulbs. NEMA 6- receptacles are grounded and have no neutral. People have been shocked to find some of this stuff out the hard way.

thanks…though I’m a bit confused at all of this.

So I guess it’s ok to do, and some think it’s safer than others.

I’ll try to be careful ?

 

[Pjlightning]

Definitely check out Splitvolt. I just listened to a podcast with their founder And it seemed like a pretty safe and well engineered system. You can plug the stove and the EV charger in at the same time and it will automatically switch between the two when you need it to. It also has some internal safety mechanisms to protect the house. You can order it with various plugs and set the max voltage accordingly. Not sure if thats what you want since it's more complex than just an adapter. https://www.splitvolt.com/shop/

thanks , this is interesting.

Probably more than I need for the temporary patch until the charge station pro comes in.

But I can see how this could be very useful in the right circumstances

 

[Stlww18]

thanks…though I’m a bit confused at all of this.

So I guess it’s ok to do, and some think it’s safer than others.

I’ll try to be careful ?

its perfectly safe until it isn’t! The splitvolt might be your best bet if it has internal ground fault protection, or a gfci breaker for that circuit on the panel

 

[FlasherZ]

actually, the stove plug HAS a ground, but it has no Neutral, as one is not needed, just like your EVSE is only using 3 wires, with no Neutral, even though the NEMA 14-50 plug/outlet has the 4th prong.

This is incorrect. That range outlet is a NEMA 10 series, which has 2 hots and a neutral. The NEC outlawed this series in new construction starting in 1996.

NEMA 6 series have 2 hots and a ground. They're typically used as welder outlets.

NEMA 10 series were used back in the day where it was considered okay to ground an appliance via the neutral. The problem with that is that it creates ground fault paths through appliances and can create shocks.

For example, my great-grandmother had an electric oven in her home that had neutral connected to the metal case of the oven. Remember that return current to the transformer can use a path through ground? Well, touching that oven and the stainless steel sink at the same time (which was bounded to ground) made you a path for some of the return electricity through her home. Just enough to give you a beautiful tickle.

That's why we now separate neutral and ground and keep them separated.

However, for this application, as noted earlier, you can use an adapter, mark it "for EV charging use only"

 

[FlasherZ]

They are also used commonly now for NEW electric Clothes Dryers, although many older clothes dryers and outlets are still using the 3-prong type, with no Neutral, and with no issues. It was just a change for electric dryers to have a Neutral, just in case, although, again, the Neutral wire is not really needed for any 'power' requirements, but just another exit 'path' since an appliance is typically METAL and something you can readily 'touch'.

Not true for all electric dryers. Many of them still need 120V for the relays to control electric heating elements and motors, and some others use 120V motors. The neutral is required on these appliances, whether it's done through a 3-wire 10-series or a 4-wire 14-series connection.

 

[hturnerfamily]

This is incorrect. That range outlet is a NEMA 10 series, which has 2 hots and a neutral. The NEC outlawed this series in new construction starting in 1996...

FlasherZ has appropriately corrected me, and here's more info on that:
NEMA 10

The now-deprecated NEMA 10-30 has a neutral pin (at top of photo), but does not have a dedicated safety grounding pin.
NEMA 10 connectors are a now deprecated type that had formerly been popular in the United States for use with high-power electric clothes dryers, kitchen ranges, and other high-power equipment. NEMA 14-30R and -50R connectors have generally replaced NEMA 10 equipment for these applications. NEMA 10s are classified as 125/250 V non-grounding (hot-hot-neutral), and were designed to be used in a manner that indirectly grounds the appliance frame to the neutral, which was common before the requirement of a separate safety ground was incorporated in the National Electrical Code.

and while he is technically correct, IF what you really have is this Nema10(your plug does not have this "L" shaped prong, though), the reality is that, regardless, the adapter is not going to be connecting the outlet's Neutral prong with a Neutral wire from the EVSE, since there is not one, but it's going to be using that prong/wire as a GROUND, which the EVSE DOES use. Since either a Neutral wire or a Ground wire both go back to the EXACT same neutral/ground bar on your home's panel, it matters not.

in other words - none of this really matters - an ADAPTER takes care of the worry, and makes the correct connections - you don't have to be concerned, and yes, you can use this 24/7 full time for your EVSE - you don't have to worry about something being only for 'temporary' purposes.

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