push switch and then move your finger, the actuator will back to the original position.
12 Latching: when you press the button, it keeps pressed until you press again
13 Contact: The contact is a conducting part designed to be united by pressure to another conducting part for the purpose of carrying current.
14 N.C.: Normally Closed circuit
15 N.O.: Normally Open circuit
16 International express 
                [Related Keywords : illuminated push button, illuminated switch, on-off switch, pus button switch illuminated]