What is a Door Switch?Door switches simply refer to sensors devised to indicate whether a door is closed or opened. They are normally attached to the door frame, and their opening and closing is what determines whether the electrical contact circuit will be made or broken. It will interest you to kn

As a professional manufacturer of micro switches, Unionwell has Accumulated the next technical codes and meanings in the micro Change Sector, and so that everyone can understand and use micro switches at the future:1. Pre travelThe angle or distance of motion from the free position of the drive rod