Torquing the connections may not have mattered, since the Leviton 279-S00 has half size steel contacts to the plug blades that cause excess heat.
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Master Thread: Definitive 14-50 NEMA Outlet Guide
- Thread starter gilscales
- Start date
Torquing the connections may not have mattered, since the Leviton 279-S00 has half size steel contacts to the plug blades that cause excess heat.
stopcrazypp
Well-Known Member
Maybe my post?
Master Thread: Definitive 14-50 NEMA Outlet Guide
The standard flat cover plates are not compatible with exposed work boxes unless you use a mud ring. For a 4-11/16" box something like this:
Steel City 2-Gang 4-11/16 in. Square Metal Electrical Box Cover for 2 Devices 72C17-25RR - The Home Depot
Most of what the stores have in stock is raised, so there will be a gap created and it won't look flush unless you find a flat mudring. I did something similar for my 4x4 box because that was what they had in stock.
If you want something in one piece, the Raco 888 appears to be the only one compatible.
Well, at this stage I'll admit I only read the first of the now 43 pages of this thread. I could have saved time if I had read your post! I'm glad to know I'm not the only one who knows about the 888.
If I add the Square Metal Electrical Box Cover you linked to, then will it improve my installation? Not sure it's even possible for me to add it since I would keep the Raco 888.
stopcrazypp
Well-Known Member
No will not. The mud ring linked is only if you want to use the flat covers that others have used. I personally would just leave it with the Raco 888 as that's the proper way to do exposed work.
kppolich
Member
Figured this would be the place to ask.
I'm installing a Hubbell HBL9450A and for the life of me can't find a wall plate to cover it.
New Work Box, In wall.
HELP!
I'm installing a Hubbell HBL9450A and for the life of me can't find a wall plate to cover it.
New Work Box, In wall.
HELP!
kppolich
Member
This is what I was looking for:
In wall (old work box) cover for Hubbell HBL9450A
This is not what I was looking for:
www.zoro.com
This looks like a metal box cover, likely externally mounted, not in the wall.
In wall (old work box) cover for Hubbell HBL9450A
This is not what I was looking for:
Raco Electrical Box Cover, 30-60A Receptacle 888 | Zoro
Order Raco Electrical Box Cover, 30-60A Receptacle, 888 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.
www.zoro.com
stopcrazypp
Well-Known Member
If you look at the discussion in context, it should be fairly clear the Raco 888 is for exposed work boxes and specifically for an extra large 4-11/16" box.This is what I was looking for:
In wall (old work box) cover for Hubbell HBL9450A
This is not what I was looking for:
This looks like a metal box cover, likely externally mounted, not in the wall.Raco Electrical Box Cover, 30-60A Receptacle 888 | Zoro
Order Raco Electrical Box Cover, 30-60A Receptacle, 888 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.
For a larger selection of in-wall box covers (including white plastic ones), I cover it under this post:
Master Thread: Definitive 14-50 NEMA Outlet Guide
FYI, for anyone buying the Hubbell 9450A or the Bryant 9450FR receptacles (which is what I did at Grainger, given it's much less expensive for essentially the same part) note that Leviton does make a clone of the SS701 face plate for the larger non-standard 2.465" diameter hole. SS701-40 Given...
teslamotorsclub.com
kppolich
Member
Thank you, I thought I provided enough context in my original request "New Work Box, In wall." but I ended up finding what I needed anyway.If you look at the discussion in context, it should be fairly clear the Raco 888 is for exposed work boxes and specifically for an extra large 4-11/16" box.
For a larger selection of in-wall box covers (including white plastic ones), I cover it under this post:
Master Thread: Definitive 14-50 NEMA Outlet Guide
FYI, for anyone buying the Hubbell 9450A or the Bryant 9450FR receptacles (which is what I did at Grainger, given it's much less expensive for essentially the same part) note that Leviton does make a clone of the SS701 face plate for the larger non-standard 2.465" diameter hole. SS701-40 Given...
I also had a heck of a time trying to use the forum search to find it. Anyway, found it now, ordered and on the way to Level 2.
stopcrazypp
Well-Known Member
I used a 30.3 cu (4x4x2-1/8") metal box.
https://www.lowes.com/pd/RACO-2-Gang-Metal-New-Work-Square-Electrical-Box/3129407
Then a 5/8" mud ring for extra depth.
https://www.lowes.com/pd/RACO-2-Gang-Square-Metal-Electrical-Box-Cover/3130131
Depth is fairly important given the Bryant/Hubbell outlets are deeper.
Leviton 0S701-040 cover (note 2.465" diameter opening, not the standard 2.156")
https://www.acehardware.com/departm...witches-outlets-and-plugs/wall-plates/3272952
Found as per detailed post:
https://teslamotorsclub.com/tmc/posts/6266356/
Ideally a Raco 813C cover plate would have been the ideal choice as it wouldn't need the extra mud ring and separate cover plate, but couldn't find any in stock locally.
https://www.amazon.com/Raco-Exposed-Work-Cover-813c/dp/B000GASAI8
Plenty of space for 6 AWG THHN x3:
https://www.lowes.com/pd/Southwire-...3129547?idProductFound=false&idExtracted=true
https://www.lowes.com/pd/Southwire-...3135097?idProductFound=false&idExtracted=true
https://www.lowes.com/pd/Southwire-...3129549?idProductFound=false&idExtracted=true
Plus the 10AWG Ground:
https://www.lowes.com/pd/Southwire-10-AWG-Stranded-Green-Copper-THHN-Wire-By-the-Foot/3135091
YMMV if you are using a plastic box.
Last edited:
Thanks to everyone that contributed to this thread. I replaced my Leviton outlet with the Hubbel 9450A yesterday.
Background: when I had solar installed in my home ~4 years ago, I had the solar guys install 2 Nema 14-50 outlets (on 2 different 50A breakers) in my garage, as I knew I would be getting an electric car eventually. Have been using the outlet since 2020 when I got my first Tesla.
Symptoms: Recently, when charging more than 10%, my mobile charger would reduce rate to 16A and give me the blinking red T error. If only charging for a short while, then no issues. When I placed the charger on our 2nd outlet, it worked fine even for a deep charge, suggesting that there may be an issue with the first outlet.
So I ordered the Hubbel 9450: Amazon.com
The box that was used by the electricians was the kind with screw holes on the corners, so I needed the Raco 813c to mount the outlet to the box:
Also ordered an inexpensive torque driver to be able to torque to 75 in-lbs: Amazon.com
Installation notes: Make sure you test that the power is out at the outlet. I flipped off the breaker, and found out that I flipped the wrong breaker when testing the outlet. So make sure you test it before starting on any work. Other than that, installation was straightforward, as you can see from the other posts on this thread. 75 in-lbs is a lot of torque, so those wires are down tight. I jiggled the outlet placed it in the box, took it out after a few minutes and rechecked to torque just in case.
Results: My kid came to visit with my old Model 3 yesterday, so we charged it from 60% to 95% on the new outlet with no issues. Last night, I also charged up my plaid about 15%, again with no issues.
I’m going to be ordering another outlet and cover plate and proactively change out the other Leviton outlet in our garage in the next few days.
Background: when I had solar installed in my home ~4 years ago, I had the solar guys install 2 Nema 14-50 outlets (on 2 different 50A breakers) in my garage, as I knew I would be getting an electric car eventually. Have been using the outlet since 2020 when I got my first Tesla.
Symptoms: Recently, when charging more than 10%, my mobile charger would reduce rate to 16A and give me the blinking red T error. If only charging for a short while, then no issues. When I placed the charger on our 2nd outlet, it worked fine even for a deep charge, suggesting that there may be an issue with the first outlet.
So I ordered the Hubbel 9450: Amazon.com
The box that was used by the electricians was the kind with screw holes on the corners, so I needed the Raco 813c to mount the outlet to the box:
Also ordered an inexpensive torque driver to be able to torque to 75 in-lbs: Amazon.com
Installation notes: Make sure you test that the power is out at the outlet. I flipped off the breaker, and found out that I flipped the wrong breaker when testing the outlet. So make sure you test it before starting on any work. Other than that, installation was straightforward, as you can see from the other posts on this thread. 75 in-lbs is a lot of torque, so those wires are down tight. I jiggled the outlet placed it in the box, took it out after a few minutes and rechecked to torque just in case.
Results: My kid came to visit with my old Model 3 yesterday, so we charged it from 60% to 95% on the new outlet with no issues. Last night, I also charged up my plaid about 15%, again with no issues.
I’m going to be ordering another outlet and cover plate and proactively change out the other Leviton outlet in our garage in the next few days.
n2mb_racing
Active Member
Bryant Electric 9450FR 50 Amp 125/250V NEMA 14-50R Flush Straight Blade Receptacle, Black https://a.co/d/hhlrqCo
The price, seller, and reviews suggest a high probability of getting a counterfeit Hubbell 9450A. I would return that and purchase a Hubbell 9450A from a reputable source.
Or, better yet, a Bryant 9450FR from Grainger for even less. The 9450FR and the 9450A are the same unit sold under two brand names by the same company.
n2mb_racing
Active Member
Sorry to bump this - but does the metal face plate / cover need to be grounded?
And is Zoro and authorized reseller?
davewill
Active Member
Yes, but if you've grounded the metal box and the outlet, then that should ground the cover.
stopcrazypp
Well-Known Member
Are you asking because you have a plastic box? Note as per my note here, Leviton sells plastic cover plates with the 2.465-inch diameter.
Master Thread: Definitive 14-50 NEMA Outlet Guide
Here's a white one, but there's a variety of colors available (just make sure you are buying one with 2.465-inch hole diameter, not the smaller 2.15 inch):
Amazon.com
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