I agree. There are so many ways to pass UL. I am a EE with 2 MS degrees 1 in Power Electronics and instrumentation and one in VLSI design. My MS project was 3 has inverter and feedback loop for controf the speed of a DC motor and I worked for 2 years at a company collaborative with ABB to build electrnics to drive a massive electrical locomotive with 2 huge DC motors. For the high current, the contacts and the thickness of the conductor are very important. 240V is not really considered high voltage. I decided to get the 80A non UL rated version instead of the 50A UL rated one because the design is basically the same but a fatter conductor and contact heavy duty enough. Since this seems to be just a mechanical adapter, I was more concerned with getting a 50A UL rated non mini version and plug it to an 80A charger and face fire hazard.