AC WORKS Charging Adapter Pigtail 32Amp Review

After charging my Tesla M3 for almost exactly 2 years this adapter found something which caused the circuit breaker to blow and the adapter melted. It looks like a fire hazard. Burn marks are visible between the metal pins and melting of the plastic is evident. I have a 40A circuit and the Tesla charges at 32A (80% of the UMC rating at 40A) so I didn't expect this to happen. I can't find a better product and the price of $65 is a bit high for a relatively basic product, but it's worth it to me.