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Wall Connector - max run for 6/2 Romex on 50A breaker

sethinGR

Member
Apr 25, 2021
36
14
Grand Rapids, MI
The manufacturers of EVSEs know that 55A circuits don't really exist, so they will only build them with configurations for either 50 or 60.
And you are correct, I verified with a Juicebox user, the app only has the standard ratings 48, 40, 32, etc. Thanks for all the typing to clarify that. I guess I am stuck with 40A.
 

mociaf9

Active Member
Oct 18, 2018
2,885
5,966
CA
1. Code says 6 GA NM-B circuit is allowed to be used with a 60A breaker. I don't have the exact NEC section, but that is what he (and others) have told me.
NEC 240.4(B) (with reference to the fact that 55A is not a standard sized circuit breaker as listed in 240.6)
 

sethinGR

Member
Apr 25, 2021
36
14
Grand Rapids, MI
I don't think you will be able to find any EVSE sold by any company that can be actually permanently configured for a maximum 44A continuous, as if it were on a 55A rated circuit.
I finally got my back-ordered since May JuiceBox 48A, and hooked it up and configured it and lo-and-behold I can set it to 44A. I set it that way on the Device Configuration screen, so I think it is as permanent as it can be for a piece of electronics. I will drop a message here if for some reason it switches to 48A.

tesla app screenshot showing 44A charge rate.

1634001296705.png
 
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Rocky_H

Well-Known Member
Feb 19, 2015
6,807
8,418
Boise, ID
I finally got my back-ordered since May JuiceBox 48A, and hooked it up and configured it and lo-and-behold I can set it to 44A. I set it that way on the Device Configuration screen, so I think it is as permanent as it can be for a piece of electronics. I will drop a message here if for some reason it switches to 48A.

tesla app screenshot showing 44A charge rate.

View attachment 720436
Wow, that is really interesting. I don't think I've seen one before that would let you set such an unusual max value. And it does show that as the actual limit, since it's 44/44.
 
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