What Is The Lock And The Unlocked Button Switch?

- Mar 22, 2018-

Self locking key switch: press the key switch to close, the key is equipped with the interest rate day device to hook the contact point, and then it is still closed after releasing. The second time presses the key, the mechanical device is decoupled, and the release switch is broken.


Unlocked key switch: press on, break off, such as doorbell switch.


The use of a lock - free key switch to match the relay or electronic circuit can also realize the self - locking of the circuit.