wwhitney said:The only NEC rule for receptacles on an individual branch circuit (dedicated circuit) is that the receptacle rating be not less than the breaker rating.
Yep.GetOffYourGas said:Maybe I just answered my own question - in Case 2, the problem is lack of protection for a faulty device which pulls, say 40A, thus melting the outlet without tripping the breaker? Did I understand this correctly?
powersurge said:I hope I am not redundant... Your EVSE line should be a DEDICATED circuit for the particular amperage of your charger. Mine is a 30A charger, and the breaker is a 40A (as per the manufacturer). You should not "future proof" your 240 volt line with anything higher.
If and when you get a better charger, then change the breaker, say, your new EVSE is a 40 amp, and then put in a 50 amp breaker.
As far as "future proofing", I would have the electrician install a box that can handle future upgrades, and also run the correct gauge of 240v wire (for future upgrades) to where the EVSE will be installed, and also install a 50 amp plug (in advance). That way, when you upgrade, all you do is change the breaker, and then you are in business...
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