Wiring for an NEC SPDT on/on Push button switch?
Does anyone know how to wire an NEC SPDT (on/on) push button switch with 3 wire (connection) poles? I'm trying to make a complete circuit when I push it once and then break the circuit when I push it again.
- Daniel KLv 71 decade agoFavorite Answer
The middle one is the common. The other outer one are the normally closed and normally open. If you have a simple ohmmeter, you figure out which is which. Otherwise, just try it in the circuit and if one of the outer ones does not work the other one will.