The main components of a limit switch are the switch body, the connection terminals, and the actuator. The switch body, or contact block, includes the enclosure and electrical contacts. The connection terminals are where you connect the input and output wires.
What is a limit switch actuator?
The actuator is the part of the switch which physically comes in contact with the target. In some limit switches, the actuator is attached to an operating head which translates a rotary, linear, or perpendicular motion to open or close the electrical contacts of the switch.
What does a limit switch sensor do?
The limit switch is a type of sensor that detects the presence and absence of an object. It can mechanically be activated by making contact with another object. It has some sort of arm, lever, knob, and plunger to make the detection.