Looks like a standard microswitch to me.
https://www.arcadeworlduk.com/categories/Arcade-Parts/Microswitches/
If that's what they are, the three input/output blades can be configured to pass a signal either open or closed. Meaning if you want the switch to activate when the switch is closed you connect terminals one way, if you want it active when the switch is open you connect the terminals the other way.