Yeah, it was all those transformers I found odd. Old TouchPlate used just a single power supply for lots of relays, so having one transformer per relay is most odd. Saying 30VDC out makes more sense, it seems the GE relay is actually controlling the adjacent transformer. The question is where does that 30VDC go? To another relay elsewhere...? Low voltage lighting...? Some more control systems...?
Wierd.
And don't hate TouchPlate - a few decades ago that sort of control system was the mutts nuts. It didn't get better than that. Of course, back then we thought every home would eventually be wired that way, but look where we are now - we have really good automation products, and we still wire homes the way Edison showed us. I guess they call that progress...