What would I search for to find some information about this sort of switch and/or a replacement?
It's just two copper strips embedded in an insulator that get mashed together by a button. It says 'JX-10' on it but that doesn't seem to help my search.
It sits in the base of an electrical heater resting on a plastic peg. The peg rests on the floor and the weight of the heater pushes down on it closing the contacts. If the heater falls over, the contacts separate automatically.