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Thanks. That is surprising. My Rivian wall charger is still sitting on a shelf. I am charging using my receptacle that was installed for my welder. I have the truck set at 24A though. I think I will move up the time table for my install.
Looks like it says it's rated for 30A. Something a lot of people over look is the connection hardware...see it on aircraft a lot were the terminal lugs/splices/connectors aren't rated for higher amps. That's the difference between household/commercial/industrial....its just different ranges. To me household/commercial/industrial is all a distraction....the numbers won't deceive you.This is VERY IMPORTANT.
3 years ago, I had 2 240 drops in the garage off their own panel from a local and reputable electrician. They were plug-in 14-50s vs. hardwired so I could be flexible with the chargers we bought (since we figured they would improve dramatically over time).
Abut 15 months later, I smelled burning plastic while the i3 was charging.
Here is the result.
If you just got your truck.. .it needs to "figure out" the miles/hour rate. When I first plugged my R1T into my 32amp Juicebox the App and truck both displayed "4miles/hr"charge rate but then corrected to the accurate "16mi/hour" charge rate indicated a couple of hours later.
You know they have the stuff that's rated at 90C right?
Not fully sure I follow what you're suggesting. Romex is rated for 90C temps but the ampacity must be treated as if rated for 60C. There are non-Romex options, such as THHN in conduit, that meet code for a 48A charger on a 60A breaker.
100 agree. Hey electruck, while I have your attention, do you see anything against code by using 6/2 NM-B Romex on a 60 amp breaker as long as the dip switches in the EVSE are set to 40amp and the settings on the EV are also set to charge at 40amps? (Not 48) Does code say one has to change out the 60amp breaker to 50amp? i.e. short tripping issues?
I'm not well versed enough on electrical code to feel comfortable giving a definitive answer on that but I'll give you my rather conservative personal opinion on the matter anyway. In my opinion, you would need to swap in a 50A breaker. I will say that there have been some gaps in code around EVSE that they are slowly trying to tighten up (things such as ensuring the consumer can't change the EVSE setting to exceed circuit limits). Given that, I would think it would be in the spirit of NEC to require changing to a 50A breaker in that scenario as someone not-in-the-know might make a bad assumption about the wiring based on the breaker rating. Whether or not your local inspector would pass the 60A breaker, it would be safest to ensure wiring, breaker, and EVSE setting are all consistent. Personally, if I were to sell my house, I know I wouldn't want to leave the 60A breaker behind for an unsuspecting future owner. Take all that FWIW and then consult a licensed electrician.
Very good. Much appreciated reply.I'm not well versed enough on electrical code to feel comfortable giving a definitive answer on that but I'll give you my rather conservative personal opinion on the matter anyway. In my opinion, you would need to swap in a 50A breaker. I will say that there have been some gaps in code around EVSE that they are slowly trying to tighten up (things such as ensuring the consumer can't change the EVSE setting to exceed circuit limits). Given that, I would think it would be in the spirit of NEC to require changing to a 50A breaker in that scenario as someone not-in-the-know might make a bad assumption about the wiring based on the breaker rating. Whether or not your local inspector would pass the 60A breaker, it would be safest to ensure wiring, breaker, and EVSE setting are all consistent. Personally, if I were to sell my house, I know I wouldn't want to leave the 60A breaker behind for an unsuspecting future owner. Take all that FWIW and then consult a licensed electrician.
I'm not an electrician, but if the code for sizing says it can run 48A if the wire is rated for 90C I can't really see the difference. Again, I'm not an electrician but I did have a licensed electrician tell me it was fine.
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