Technically, yes, however, you can't set the car to 24amps. The options are 48/32/20, etc so he can set it to 20amps to be safe.

 

This is what I did before my 60 amp circuit got installed . As mentioned, set the limit in the car to 20 amps so you don’t overheat anything. Which is a PITA if you AC charge anywhere else, but still absolutely necessary

Also, be careful as the adapter can partially pull out of the socket pretty easily as you move the FFC around. There’s a reason my electrician referred to those adapters as “widow makers”.

Definitely a temporary solution.

 

Set it to 24 amps in the car (the app will not let you go to 24). I made the mistake of plugging in with no limit before I asked what breaker we are running at work (30) and it tripped. Setting it to 24 and it's been perfect.

 

The ability to set to 24A in the car may be limited by the software level. I have not received the latest update - currently at 03/2023.53 - and a 24A setting in the car is not supported. I do hear reports of later versions supporting a 24A setting, but haven't been able to confirm it.

 

Thank you all. In the end, for safety, I decided not to lend my father the Flexible Fast Charger.

As it turns out, unlike with our i4s, my father's new Ioniq 5 doesn't have an option to set the number of amps for AC charging. It does have three settings labeled something like Full, Reduced, and Minimal. On the closely-related GV60, those are labeled 100%, 90%, and 60%.

The 240v plug adapter for my Flexible Fast Charger has a NEMA 14-50 plug. When connected, the Flexible Fast Charger operates at up to 40 amps. Even if I set the Ioniq 5 to Minimal (which I think is 60%), the car will try to pull nearly 29 amps. That's well above the 24 amps that should be sustained by the 30 amp breaker connected to my father's welding receptacle.

As part of his purchase, Hyundai is providing a CharePoint Home Flex and reimbursing up to $600 for its installation. They will send email in about 10 days with a code that can be redeemed to get the charger at no cost from their store. when it arrives, he'll schedule installation. In the meantime, since there are no DCFC around his home, he'll have to charge slowly. Fortunately, there are free AC chargers at several places that he goes to.