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Master Thread: Definitive 14-50 NEMA Outlet Guide

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Hello,
Not much red wire available in my area .

Can I use two blacks , white and a green ?
I am running thhn in conduit
Yes, but mark the "red" black cable with some red tape on both ends so anyone in the future knows. Something kinda like this:
1712322600781.jpeg
 
Hello,
Not much red wire available in my area .

Can I use two blacks , white and a green ?
I am running thhn in conduit
You can run them all in black if you like. It can save a lot of money to buy just one large spool/package of black instead of smaller lengths of different colors. Just mark the neutral white and the ground green at both ends as noted above. You can mark one of the hots red if you like, but it's not really necessary.
 
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You can run them all in black if you like. It can save a lot of money to buy just one large spool/package of black instead of smaller lengths of different colors. Just mark the neutral white and the ground green at both ends as noted above. You can mark one of the hots red if you like, but it's not really necessary.
IIRC technically by code unless the wire is 4 awg or larger or part of a cable assembly, you can't tag wires as ground or neutral.

Two blacks is fine though. You don't actually have to mark L1/L2 as different colors as you note.
 
You can run them all in black if you like. It can save a lot of money to buy just one large spool/package of black instead of smaller lengths of different colors. Just mark the neutral white and the ground green at both ends as noted above. You can mark one of the hots red if you like, but it's not really necessary.

Not required, but it sure can help with troubleshooting in the future. I say, invest the penny
 
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I am not pulling any permits but if I sell my house 5 years from now and all 4 wires are black, is that going to be an issue? I am in Illinois
For code / inspection, if 6 awg or smaller, the ground has to be green or bare and the neutral has to be white or gray (with any color strip except green) or any non gray color with white/gray stripes

1712402481573.jpeg


If 4 Awg or larger you can use black wire, but the neutral and ground need to be tagged as such (with marker, tape, etc)




One option would be to use an 6-50 or a wall connector and not bother with a neutral at all. And you can just pull a 10 awg ground which should be considerably cheaper than the 6 awg hots. You can also ground to the box and not pull a dedicated ground wire if you’re using EMT all the way through, but I’m not a big fan of that practice since there’s more to go wrong.
 
Hello everyone. I'm upgrading my NEMA 14-50R plug after Sandy Monroe's video and reading threads like this. Currently I have a Leviton 14-50, I de-rate the car to 24A for heat reduction, but I want to replace this plug as it's not a good long-term solution.

I'm willing to spend the money, but when going to Amazon I get a few options.

1. $ 55 https://www.amazon.com/Hubbell-9450A-50a-120-volt-Receptacle/dp/B00EN9VO7W
2. $119 https://www.amazon.com/Hubbell-9450A-50a-120V-Receptacle/dp/B077Y3NX42?ref_=ast_sto_dp
3, $98 https://www.amazon.com/HUBW-HBL9450A-Receptacle-NEMA14-50R-14-50R/dp/B01IC8GI9I?ref_=ast_sto_dp

I also see Leviton has a EV rated 14-50R now too


Which one to buy?
 
Hello everyone. I'm upgrading my NEMA 14-50R plug after Sandy Monroe's video and reading threads like this. Currently I have a Leviton 14-50, I de-rate the car to 24A for heat reduction, but I want to replace this plug as it's not a good long-term solution.

I'm willing to spend the money, but when going to Amazon I get a few options.

1. $ 55 Amazon.com
2. $119 https://www.amazon.com/Hubbell-9450A-50a-120V-Receptacle/dp/B077Y3NX42?ref_=ast_sto_dp
3, $98 https://www.amazon.com/HUBW-HBL9450A-Receptacle-NEMA14-50R-14-50R/dp/B01IC8GI9I?ref_=ast_sto_dp

I also see Leviton has a EV rated 14-50R now too


Which one to buy?
None of the above! You should not trust Amazon for such an item - likelihood of getting a counterfeit product is high. Buy the Bryant version from Grainger. It’s made in the same Hubbell factory that makes the 9450A. https://www.grainger.com/product/Receptacle-Single-49YY93
 
Looks like three different Amazon marketplace vendors with different prices for the same Hubbell 9450A.

You can also look for the similar Bryant 9450FR.

The Leviton 1450R is a new product with similar high quality features of full size plug blade contacts and pressure clamp wire connections (different from the common Leviton 279-S00).

The Leviton 279-S00 has a compact design; depending on the receptacle box, you may need to install a larger one or a box extension to fit some other models of receptacle as a replacement.
 
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FWIW you do not need a NEMA 14-50. A NEMA 6-50 only requires 2 #6 and a ground so the wire run is cheaper and lighter. I know of no EV that requires a neutral. Yes Hubble makes a 6-50.
Yes, if I were installing a new outlet run now, I'd go with a 6-50 to save money. Especially now that the UMC has an official 6-50 plug. Back in 2016 we thought NEMA 14-50 was the default and future proof.
 
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Just don't forget to weigh the costs.

While the neutral is not used and has no connection on a Tesla Mobile Connector plug, I don't know of many (any?) non-Tesla mobile chargers that use a 6-50 plug. 14-50 is the de facto standard.

At $45, a Tesla 6-50 adapter may cost more than the additional wire and a 14-50 receptacle will serve the greatest number of EV chargers.
 
Yes Hubble makes a 6-50.

However, if it is the same as the Bryant 9650FR, then it does not have the pressure clamp wire connections that the Bryant 9450FR and Hubbell 9450A have. The Bryant 9650FR has the common screw down wire connections that require more care to install correctly.

(Leviton also offers the 5374-S00 model for 6-50, but that has half size plug blade contacts like the 279-S00 for 14-50 that can increase risk of overheating.)
 
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