> the adapter is only for DC fast charging, not for Tesla's AC destination chargers

I wonder what actually happens if you try to use a Tesla destination to J1772 adapter with a NACS DC charger? In that case, the 400-1000VDC pins are connected to the 240VAC pins on the vehicle. Is the NACS handshake smart enough to detect this fault before the power turns on?

I have one of those adapters, but I stuck a "120-240V AC ONLY" label on it because I don't want to find out.