TVA111A Air Switch Tinytrol Latching

Air Switch, (1/2" Mounting Thread), Latching, PRESAIR, TVA111A, SPDT, 21 Amp 125/250 VAC, Center Spigot.

The TVA111A has three terminals. If you are replacing an air switch that has only has two terminals, you would connect the two terminals as you would your old switch and leave the third unconnected.