svet-am
Well-Known Member
- First Name
- Tony
- Joined
- Mar 24, 2021
- Threads
- 16
- Messages
- 666
- Reaction score
- 1,244
- Location
- Broomfield, CO
- Vehicles
- R1S (Launch Edition Preorder)
- Occupation
- Embedded Systems Engineer
The electrician who did the work for me verified that wiring would be fine. It was done at 50A previously by the previous homeowner (we see it in the permit history that he did it himself, another good reason to pull permits folks) and they slapped a 50A on for who knows what reason. It would be fine at 60A though.There is a bit more to it than that. The wire must be THN, THWN, SE... (i.e. rated 75 °C) and not NM-B or UF-B (60 °C) in order to use a 60A breaker with it and charge at 48A. The fact that your house has a 50 A breaker protecting this wire suggests it is not rated 75 °C. Unless you can verify that the wire is rated 75 °C you will have to stick with the 50A breaker and charge at 40A max.
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