A geared rotary limit switch is a device used to control the movement of industrial machinery by measuring rotation angle and/or shaft revolutions. It is typically connected to the motor shaft and uses a series of gears and cams to activate microswitches when the desired number of rotations is reached. This allows the switch to stop the engine when a moving load has reached its final position. The geared rotary limit switch features adjustable cams that can be calibrated to open and close each microswitch as needed. It is commonly used in applications such as cranes, hoists, winches, and wind turbines to provide upper, lower, and intermediate limits for moving machinery