Introduction To Limit Switch

Limit switch, also known as travel switch or micro switch, is a kind of electrical equipment that can switch circuits according to the travel position of moving parts. Its working principle is also similar to the push button switch, also belong to the master appliance. The different buttons are manually controlled by human, and the travel switch is required for external mechanical collision control. Here are its literal symbols and graphic symbols

We saw the physical display. We opened the outer cover of the switch. There was a gasket on the outer cover to prevent oil from entering. When the external mechanical impact of the switch inside the rocker arm action, normally open point closed, normally closed point disconnected.

In the actual work, the travel switch is installed in the pre-arranged position, when the production machinery moving parts impact the travel switch outside the actuator, the travel switch internal contact action, to realize the circuit switching. Used to control workpiece motion stroke or terminal limit protection to avoid collision accidents.

Types and applications of travel switches
There are many types of external actuators for travel switches, which can be installed and applied in different applications

We introduce the most commonly used direct action type, roller type
First see the direct action: when the moving mechanical parts hit the actuator of the travel switch vertically to reach a certain depth, change the internal contact state

Then see the roller type: moving mechanical parts from left or right press to travel switch roller change a certain Angle, change the internal contact shape

We believe that you have a new understanding of the selector switch, hoping to guide you in the field application and selection. We ABILKEEN are a professional limit switch manufacturer with high class quality, we have high temperature limit switch,magnetic micro limit switch, Vertical limit door limit switch and our waterproof IP68 limit switch is well received in USA,European countries. Welcome to send us an enquiry at any time, we will reply within 24 hours.