We just had a air conditioner compressor installed last week. The contractor installed a new 240V 30Amp circuit to the compressor. We are also wanting to install a new EV Charging Station (which is also 240V 30A). Can we ask an electrician to install the EV Charging Station (or to add a 240V NEMA outlet) on the same circuit as the Air Conditioner or do we need to have an entirely new circuit run from the main box for the EV Charging Station?
Electrical – Adding an EV Charging Station to an AC Circuit
240vcircuit breakerelectrical
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Best Answer
Nope. EVSE's need to be on a dedicated circuit. That's a Code requirement.
The amps of the service don't decide how many spaces are in the panel. "spaces" and "amps" are totally different numbers, you can have 12-space 200A or 42-space 100A. It sounds like you need to add a subpanel somewhere convenient. I recommend counting the spaces (not circuits) you now have, subtract that from 50, and get a subpanel with about that many spaces.