That's... fascinating. How are Zimo and Massoth boosters with 12A outputs being sold in the EU? Or Digitrax and NCE products with 8A and 10A boosters, respectively? And what about large scale? Are they into a different regulatory category requiring more testing or approvals?
If you really want to blow your mind, I operated on an O scale layout with 85A of NCE boosters, 80A of track power at around 18V, and 5A for accessories. I visited another O scale layout that was computer controlled with TrainController and had 280A of NCE PB110 boosters at 16V.