50A EV Receptacle

Little Bill

Little Bill

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I've read where one mfg (maybe Hubble?) has a 14-50R that is supposed to be heavy duty for EV charging. Has anyone here seen one? If so, where did you purchase it?
 
Little Bill said:
I've read where one mfg (maybe Hubble?) has a 14-50R that is supposed to be heavy duty for EV charging. Has anyone here seen one? If so, where did you purchase it?
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Hubble has had an industrial grade 14-50R for decades, but they have recently added an EV marking on it. I believe Leviton has also come out with a heavy duty receptacle for EVs. I think they are in the $40-$50 range.
At this time there is no listing standard for an EV receptacle, so any manufacturer can mark their receptacles for EV usage.
The second draft has a requirement for a listed EV receptacle. However they have not even started on writing a standard for such a receptacle. If the second draft language stands, we won't be able to cord and plug connect 30 and 50 amp EV units without an 90.4 permission after the 2026 code is adopted.
 
don_resqcapt19 said:
Hubble has had an industrial grade 14-50R for decades, but they have recently added an EV marking on it. I believe Leviton has also come out with a heavy duty receptacle for EVs. I think they are in the $40-$50 range.
At this time there is no listing standard for an EV receptacle, so any manufacturer can mark their receptacles for EV usage.
The second draft has a requirement for a listed EV receptacle. However they have not even started on writing a standard for such a receptacle. If the second draft language stands, we won't be able to cord and plug connect 30 and 50 amp EV units without an 90.4 permission after the 2026 code is adopted.
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Pardon my ignorance, but what is a “90.4 permission?”
 
Leviton's new updated "EV" 14-50 receptacle is part #14-50R-B0 (that's B-zero).

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Be aware, the cover plate is bigger. For a 4&11 square box, the RACO part# is 888 for a raised surface mount cover. My supply house does not stock this part, but had one next day from the warehouse. This cover is not commonly used.

The Hubbell HBL9450A has been around for a while (got stupid expensive during the pandemic) and was often recommended as the best 14-50R receptacle for EV charging. The new Leviton is built almost exactly the same as the Hubbell.
 
Given that this whole business of needing a EV grade came about because Leviton specifically built inferior receptacles, maybe go with Hubbell on principle, if you must use an EV rated receptacle (and I've made my feelings on that clear on pg4+ of the linked thread).

Legrand also makes one, but it's going for around $57 if you can get your supply house to cut you a good deal. So the Leviton is the cheapest, and it exists because the other Leviton was way too cheap.
 
Do they make a 'EV rated' receptacle in the correct configuration yet (NEMA 6-50)? Or am I still going to be seeing these wired with a floating neutral?
 
pipe_bender said:
Do they make a 'EV rated' receptacle in the correct configuration yet (NEMA 6-50)? Or am I still going to be seeing these wired with a floating neutral?
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We can just restart that thread every 2 weeks in perpetuity.

Do EVSE manufacturers ever provide a 6-50P? Trying to convince HOs that they also need to buy a new $50 plug for my install in order to save $25 in wire doesn't go over well.
 
NoahsArc said:
We can just restart that thread every 2 weeks in perpetuity.

Do EVSE manufacturers ever provide a 6-50P? Trying to convince HOs that they also need to buy a new $50 plug for my install in order to save $25 in wire doesn't go over well.
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They do, the ones I bought instead of the customer were always the 6-50, but it’s been years since I bought one. Dealers convince the customers they need the 14-50 so they can plug into an rv receptacle. Don’t know how many actually do.
 
electrofelon said:
Just when you think you have seen it all and the CMP's can't approve anything dumber......🙄
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There is an issue with multiple reports of failed receptacles for EV equipment. This really should not be happening as the testing in UL 498 accounts for a continuous load at the full rating of the receptacle, but something in the testing standard is likely wrong, so listed receptacles are failing in real world usage and they should not be.
The only dumb thing about this is that the approval requires the use of a product that does not exist and it may be a number of years until one exists.
 
don_resqcapt19 said:
There is an issue with multiple reports of failed receptacles for EV equipment. This really should not be happening as the testing in UL 498 accounts for a continuous load at the full rating of the receptacle, but something in the testing standard is likely wrong, so listed receptacles are failing in real world usage and they should not be.
The only dumb thing about this is that the approval requires the use of a product that does not exist and it may be a number of years until one exists.
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It’s like with afci’s, Eaton was the only one making them, so they were making them for other manufacturers until they got their own versions into production.
 
hillbilly1 said:
They do, the ones I bought instead of the customer were always the 6-50, but it’s been years since I bought one. Dealers convince the customers they need the 14-50 so they can plug into an rv receptacle. Don’t know how many actually do.
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I sincerely hope no RV owner would ever trust a EV plug. Any receptacle installed for a EV may likely have the neutral omitted as code permits it to be omitted.
 
How well would the "California style" locking plugs hold up? They maybe more in that $50 -$60 dollar range from my recollection? They seem to be common for generator inlet purposes.
 
pipe_bender said:
I sincerely hope no RV owner would ever trust a EV plug. Any receptacle installed for a EV may likely have the neutral omitted as code permits it to be omitted.
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I may have missed it somewhere, but where does the code allow the neutral on a 14-50 receptacle be omitted? I can see on a male plug if the equipment does not require it.
 
pipe_bender said:
I sincerely hope no RV owner would ever trust a EV plug. Any receptacle installed for a EV may likely have the neutral omitted as code permits it to be omitted.
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I would probably never omit the neutral on any 14-50 receptacle particularly in a garage or outdoors, potential for an RV to get plugged in is a big reason. If running raceway and not cable I'd at least run a 10 AWG neutral conductor over no neutral at all.
 
hillbilly1 said:
I may have missed it somewhere, but where does the code allow the neutral on a 14-50 receptacle be omitted? I can see on a male plug if the equipment does not require it.
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I don't think it does other than possibly indirectly via 110.3(B) and listing/instructions.
 
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