I have purchased a wall charger for my new-to-me 2019 MX. My service panel on my house is on the opposite side of the house from the garage. While possible, it will be complicated and expensive to run a new circuit to the garage for the wall charger. There is no dryer circuit to commandeer- so that’s out.
However, I do have a 50 amp circuit just outside the garage powering my AC condenser unit. It sits idle probably 9-10 months out of the year and even when we do use it, we never run it past 11pm. I plan to charge the car between midnight and 8am. At 40 amps charging this should handle topping off the car nightly with no issues. Because these devices don’t routinely overlap, I am considering sharing this circuit between the AC and the charger.
Just because I don’t usually do something doesn’t mean it can’t happen that the charger and AC might find themselves on at the same time. So I’d like some protection against that aside from relying on the 50 amp breaker in the main panel. I have read about DPDT switches and using a small panel with a breaker interlock to assure both devices can’t run simultaneously. But those are manual switches and would be cumbersome to use on a daily basis.
Is there some kind of auto transfer device I can buy or build that would allow both devices to remain connected to power but, if the AC is running, would cut off power to the charger?
However, I do have a 50 amp circuit just outside the garage powering my AC condenser unit. It sits idle probably 9-10 months out of the year and even when we do use it, we never run it past 11pm. I plan to charge the car between midnight and 8am. At 40 amps charging this should handle topping off the car nightly with no issues. Because these devices don’t routinely overlap, I am considering sharing this circuit between the AC and the charger.
Just because I don’t usually do something doesn’t mean it can’t happen that the charger and AC might find themselves on at the same time. So I’d like some protection against that aside from relying on the 50 amp breaker in the main panel. I have read about DPDT switches and using a small panel with a breaker interlock to assure both devices can’t run simultaneously. But those are manual switches and would be cumbersome to use on a daily basis.
Is there some kind of auto transfer device I can buy or build that would allow both devices to remain connected to power but, if the AC is running, would cut off power to the charger?