My "Bikini" machine has a switch near the top right.
It turns on a light to get a look at all MY money in
the coin box.
The door holds the switch OPEN when it's closed.
I guess you could call it NO.
It was not working when I got the machine, but I
thought it would be neat to get it working, like your
refrigerator light; but in THIS case you KNOW that the
light goes out when the door is closed