Scary issue with Nema 14-50 adapter melting

[Raven]

If it's the same unit that was burnt by the outlet, it could easily have been damaged enough to be causing a poor connection on that side. Definitely replace it.

If you check out my pics you will see it fully melted the one terminal and also the adapter. As I said, I replaced both the outlet and the adapter, but with a Leviton outlet rated to 75C. Cord was not damaged at the adapter.

 

[tga]

This is from another post


Please don't hack off the UMC's wall plug socket without understanding that there is a fourth control pin with the following resistance values to ground:

Tesla UMC Plugs Resistance

40 amps - 9.08k ohms

24 amps - 33.16k ohms

16 amps - 75k ohms

12 amps - 140k ohms

I'm adding this datapoint to every thread where I see this table -

32 amps - 20k ohms (measured from a Canadian 14-50 adapter)