My main charging circuits at home are two seperate 20 amp, 12/3 with ground romex cables going to 6-20 amd 5-20 combination duplex receptacles. That way when I'm not charging I can use them for any normal 120v activity.
Then I have 30 and 50 amp RV circuits at my away locations. They are dedicated circuits that run outside to an RV box with a L14-30, 10/3 with ground and a 30 amp breaker.
The one 14-50 is wired on 50 amp with 6 gauge, so my buddy can use his little stick welder.
Then if 20 amp circuits become too small my welding circuit at home is ran on 4 gauge so it can handle anything.
I could charge like 6 cars at my house if most of them used 12 or 16 amp evse chargers.
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