Before I go through the trouble of finding an electrician to come to my apartment to give me an estimate, and to tell me whether he can do it or not, I wanted to ask this question here to find out if this was even possible.
I have a 125 amp panel in my apartment. There is 6 gauge wire running from my panel to my building's main panel. I was interested in having a new 40 amp circuit installed so that I can charge my electric car (my window is on ground level and 10 feet away from where I park my car). I currently charge my car using a 120v 20amp circuit and it is incredibly slow as I expected it to be. I don't know why, but the car's charger shows it drawing 12 amps when I use this circuit.
My car is able to accept 32 amps maximum. I originally wanted to have a new 40 amp circuit installed with a NEMA 14-50 outlet. Can it be configured this way? I couldn't find any NEMA 14-50 outlets rated at 40 amps, only at 50 amps. So if I have to, would I be able to install a 50 amp breaker in my panel, run 6 gauge wire from the breaker to the NEMA 14-50 outlet? Would anything overheat? Would my panel be able to accommodate this new circuit? I would only charge my car at night (once a week) while I sleep and everything in my apartment would be turned off except for the fridge, during charging nights.
Another question is this: What gauge wire should I use? I know 6 gauge wire is rated to 55 amps and the breaker will be 50 amps but since the car accepts only 32 amps max, can I get away with using 8 gauge wire from the breaker to the outlet or do I have to use 6 gauge wire?
Lastly, as you can see in the photos of my panel, there is only one bus bar. So where would the neutral wire go and where would the ground wire go? Can they both be connected to the same bus bar? The sticker on the bottom of the panel says "For this system, neutral is not used".
I don't want to pay an electrician to come out here and start poking around just to tell me that it cannot be done, so that's why I'm asking here first. Thank in advance.