50-Amp EV Receptacle

There was a thread about 14-50 receptacles back in December where I posted a few side by side photos of Leviton's new vs old outlets.

Here is one foto showing the new one on the left and the old one on the right...

1744067786285.jpeg

The new one is remarkably similar to the Hubbell receptacle that is very popular. Like copyright infringement similar.
Night and day difference in how the wire is captured and "squeezed".
The new design has an Allen head screw that brings down a plate - where the screw never contacts the wire directly.
The old one had a simple screw that bore directly into the wire - which could leave strands "escaping" to the sides.
25 in-lbs spec for the old one and 75 in lbs for the new one. That's quite a difference.
 
don_resqcapt19 said:
I think there is an issue with the current product standard and the product standard testing requirements. I believe the receptacles that are failing are compliant with the requirements of UL 498.
Click to expand...
This is the real issue and fixing the standard and/or the required testing is the real solution. 80% of professionals and 99% of DIYers are going to keep using a cheaper receptacle that isn't listed for EV charging, even after you require it. Ridding the market of receptacles that have been faking their way to certain ratings is the real solution.
 
MD Automation said:
There was a thread about 14-50 receptacles back in December where I posted a few side by side photos of Leviton's new vs old outlets.

Here is one foto showing the new one on the left and the old one on the right...

View attachment 2576621

The new one is remarkably similar to the Hubbell receptacle that is very popular. Like copyright infringement similar.
Night and day difference in how the wire is captured and "squeezed".
The new design has an Allen head screw that brings down a plate - where the screw never contacts the wire directly.
The old one had a simple screw that bore directly into the wire - which could leave strands "escaping" to the sides.
25 in-lbs spec for the old one and 75 in lbs for the new one. That's quite a difference.
Click to expand...
The one's I been getting more recently look like the one on the right, are still the 279 model, only cost about $6.00, and have no EV marking on them. I haven't been using them For EV's. Not sure if they would hold up better than the old design or not. Not just the 14-50 that have gone to that termination style, but seems to be all Leviton devices of this frame size.
 
jaggedben said:
This is the real issue and fixing the standard and/or the required testing is the real solution. 80% of professionals and 99% of DIYers are going to keep using a cheaper receptacle that isn't listed for EV charging, even after you require it. Ridding the market of receptacles that have been faking their way to certain ratings is the real solution.
Click to expand...
Yes. What drives me crazy about the current "solution" it's yet another instance of the codes and standards people putting it on the shoulders of electricians, again. It's another rule, another way to fail an inspection, another thing to keep track of - now we have to keep track of when a 50A recep is not a 50A recep 🤬. And you know it's going to be hassle with arguments with inspectors on when something is for EV use or for something else.
 
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