Surprisingly sir, it’s even the same plug on their 45. Where’s the “shrug my shoulder, I don’t know” emoji, about now. Lol.
Truth is, it’s a good hardy plug that is connected to 12 AWG or if lucky, a 10 AWG cord. But know that a circuit breaker is there to protect a conductor, not a plug and there are common sense rules to follow when sizing a circuit in an electrical system. I personally use 50 amp twist locks on all my machines just because I like them but I only have 2 50 amp recepts in my garage that are sized for actual 50 (6 AWG wire/ Breaker) all the rest are 30 amp with the furthest having 8 AWG (75’ away) and the rest, closer to the panel are all 10 AWG.
Best, Steve.