Foot switch bellows are also called air actuator that permits you to control electrical circuits securely from a distance in dangerous environments. Once you push down on top of the bellows through your foot, then air moves down the tubing toward the switch element, where it increases bellows within this switch to make active the electrical connections. Foot pedal potentiometers are frequently used in combination with a variable-speed motor. Once the amount of force applied on the foot pedal will cause the electric motor to run faster or slower which will define the device or machine speed in use. Foot pedal potentiometers are used for controlling the speed of sewing machines, cutting machines, shearing machines, etc.
These switches are either momentary or latching. Momentary means, the switch must stay compressed to achieve its function like sewing machines whereas latching means the switch can be pressed one time, then the user can eliminate the force on the switch however the device will stay on until the switch is compressed once more. The working principle of this switch is similar to an electric switch. This switch includes two contact points and the wires of this switch are simply connected to the circuit in a device.
A pedal in this switch is operated through the foot. These are available in different shapes, colors, and sizes based on the type of switch. The pedal in this switch has a spring action to press easily on foot.
