Is used to connect and disconnect from the different components of the circuit, and there are active function to prevent electrical fires. Switching applications in a variety of electronic devices, household appliances. Rotary switches, as the name suggests words interpreted as multiple gear rotation to achieve open and close. It also refers to a circuit is opened, the outage or stream it to other circuit components. Many stalls in the most common switch make operation of household appliances and electrical and mechanical equipment, such as electric heaters, electric fans, Blender, juicer, electric welding machines, etc. It contains one or more access points. Contact "closed" (closed) represents an electronic contact pass, allowing current through the switch "open" (open) electronic contacts are not conducting open and are not allowed.