Hello Bill, it’s just a fuse, but built into the 3 pin power socket. Yes agree on professionalism of the unit...Tom Konigs work is amazing, he builds everything from scratch except for tuning heads. On basses he builds all the pickups, electronics, mills the bridges etc. he also makes the knobs.
The box for the power supply was Designed by Tom in CAD, Cnc milled in his workshop , folded in his workshop, powdercoated in his workshop etc. All of the screws have captive nuts. It’s a work of art in itself. He bought a new folding machine just to get the accuracy right. Last year he redesigned and rebuilt his milling machine when he decided the accuracy wasn’t good enough to make world class bass bridges from billet brass.
It’s a level of attention to detail that few builders ever reach (Alembic of course is one of the others)