Description: Switch Type: Momentary Push Button/Self Locking Switch. Material:Plastic, Electronic Parts. Switch Working Voltage : AC 250V 3A; DC 30V 5V. The push button switch is suitable for 16mm diameter mounting hole. Used widely for circuits control in electromagnetic starter, contactor, relay and other electric circuits. Specification: LED Color: Yellow. Installation hole size: 16MM. Lamp Voltage : DC 12V. Pin Number : 5. Package Includes: 1x Push Button Switch. Note: Reset switch : press down and release ,the hand that is reply initial state . Self-locking switch : press down and release, the hand does not reply