A friend of mine installed two Nema 14-50’s in his garage to charge his Model S and Y. One day he got a message that one had Faulted out. When he went in to the garage there was a smell and smoke but luckily no fire. The system was all crusty and burnt up. It was a scary site. He had the outlets installed by an electrician but he used cheap outlets from the big box stores (under $15/each). The electrician suggested he rebuild with industrial outlets and hasn’t had any issues since. I have seen a number of posts where people explain how they saved money by not buying the expensive Hubbell or Bryant outlets. I would have done the same thinking they’re all the same. We have hardwired tesla wall connectors at our house but when I put in a Nema 14-50 at our cabin I went with the Hubbell porcelain outlet and hardware. It was over $125 before installation but I sleep better knowing they’re designed, engineered and built for continuous heavy loads. Here’s an article that might be of interest. If you have those cheap Leviton outlets, I think it’d be pretty easy to swap them out or better yet, hard wire In a dedicated system where possible. Here’s the article that got me thinking about all this. Industrial vs Residential 240V Outlets for Home EV Charging