View attachment 346749 I had this installed in the garage of my new home in June 2013 and have been using with a Clipper Creek LCS 25 with a 10-30 male plug since then. Can I have this receptacle easily changed from 10-30 to 14-30 or something else? Suggestions that don’t require a new circuit? Waiting on a Model 3 MR that I ordered last week.
That is surprising that someone was willing to install a 10-30 brand new in 2013. I think that by 2013 it should not have been allowed for new installs. The issue is that the 10-30 has "hot1, hot2, neutral". It has no ground. You are only allowed to buy replacement receptacles these days for maintenance replacement, not intended for new installs.
Now the good news: There is a very good chance that whoever ran that wire ran romex or something that has hot, hot, neutral, AND ground. Do you know what kind of wire was run? Was it romex (NM cable) or was it in conduit of some kind? Odds are there is a ground wire lurking behind that receptacle that is just not hooked up to anything. You likely can very easily swap it with a 14-30 receptacle that has hot, hot, neutral AND ground.
But yes, you can also just get the 10-30 adapter from Tesla as well instead of the 14-30. Since the Tesla does not use the neutral, it can use that wire as a ground instead. Assuming it goes directly back to your main breaker panel (service entrance panel) then the wire is a functional equivalent of a ground anyway.
If it was just a simple as swapping the receptacle, I personally would swap it anyway since all 10-30 receptacles need to die, but the 10-30 receptacle would work with the right Tesla adapter.
