ajdelange
Well-Known Member
- First Name
- A. J.
- Joined
- Aug 1, 2019
- Threads
- 9
- Messages
- 2,883
- Reaction score
- 2,317
- Location
- Virginia/Quebec
- Vehicles
- Tesla XLR+2019, Lexus, Landcruiser, R1T
- Occupation
- EE Retired
As has been pointed out the 14-50R won't plug into the dryer outlet as is. You will have to obtain an adapter or modify the plug. If you do this and plug in drawing 32A the breaker will eventually pop but it may take some time for it tp do that (15-min to an hour?) depending on temperature and the breaker. You will be in violation of code in any case. You MUST set the charging rate to 24A on the truck's charging screen if you do this.So the portable charger says it will do 32 amps. What happens if the breaker providing the power is only 30 amps? Will the charger adjust or just trip the breaker?
The "standard" dryer outlet now seems to be the NEMA 14-30R. In older houses it will probably be a NEMA 10-30R. This is wired to Hot - Hot -GROUND (not Hot-Hot-Neutral). EVSE requires the two hots and the ground so this is fine for EVSE but you must make up or buy an adapter, With a 14-30R receptacle you can make up or buy an adapter or you can just use the plug that came with the EVSE but it must be modified a bit to fit into the 14-30R receptacle. Whichever of these options you use you MUST reduce charging to 24A and even doing that will not make you legal.One place I frequent has a stacked washer/dryer unit that has the standard 220 dryer plug that I plan on plugging the portable Rivian charger into for overnight charges.
Yes, that is best but new wire that supports 50A in an EVSE application (i.e. not NM-B) would have to be pulled.for code compliance.Suppose it’s best to bump that breaker up to a 50A? It’s a 200A panel with hardly anything leveraging it..
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