Thanks for that, and you may well be right. I don't think there are any other fuses
between these and the devices they control. Like the bilge
pumps, tricolor, steaming light, instruments, you know, all those little things that make driving a boat fun.
It appears the same switches/breakers are used on both AC and DC panels
, and the buttons are opaque, non lighted.
I still cannot yet find a model number. I looked up the US patent number 4148002 and the abstract states that this is "An electric
on-off switch which may optionally include a thermal trip including a bimetal strip..." etc.