Just adding to the mystery. I have two Gen 3 wall connectors. One is the standard NACS unit, and the other is the Universal unit. They both show different readings when not in use. It’s odd.
The one drawing (apparently) .2 amps on Phase B is the Universal charger. Perhaps someone has figured this out?
FWIW, I took a rudimentary measurement of the power draw on a universal connector, and it’s not using anywhere near .2 amps when idle. I think it’s an issue with the integration for this particular connector type. Perhaps the decimal is in the wrong place. It seems to measure correctly when actually charging the vehicle.
Edit: Another interesting difference about the Tesla UWC is that the current draw reads differently than on the regular Gen 3 wall connector. On the regular WC, for whatever reason, it shows active current distributed between Phase A and Phase B (shouldn’t that read Side A and Side B in the integration, at least in the US where we’re 240v single-phase?). On the UWC, all current draw is shown on Phase B.