Switch actuators are mechanical devices that activate an electrical switch when actuated. They are typically used to remotely control a switch or other electrical device. Switch actuators are powered by either electrical or pneumatic (air) pressure, depending on the application. The actuators themselves can be either manual, such as those operated by a toggle lever, or automated, such as those operated by a motor. They are commonly used in industrial and commercial settings to control machinery, lights, and other electrical applications. Switch actuators are extremely versatile, often allowing for multiple switching functions.