manybees wrote:
I can't put in a 32A EVSE because it would still require a 40A circuit even if it were stepped down to a lower amperage.
If that be true... then how can Emotorwerks (manu for JuiceBox) sell adaptors to change the 240V 40A plug on the JB to a smaller amperage plug.
They offer two 30A plugs and hell they even sell a
115V 15A adaptor << that's a clickable link to the product page.
I really think you should check the Code again.
Are you sure a 40A device drawing and limited to 16A is really a 40A device.
What if you purchased a 16A device that was upgradable to 40A via software.
Basically, these chargers can tell which plug is in use and they adjust the current accordingly. Whatever plug is in use, they still only draw 80% of the current the PLUG is rated for. The code is concerned with preventing a fire anywhere upstream of the charger, not just from the charger itself.