Rotary switches have a sensor system and a detent mechanism. The detent mechanism is used to properly determine how many switch positions are possible.
A rotary switch provides a way to control large numbers of circuits and power requirements. When using a rotary switch, a person can control instrumentations, medical equipment, computers and communication equipment.
Rotary switches feature different positions for switching that the user can set by rotating a switch spindle in different directions. Some rotary switches have additional movements that produce binary code.