A rocker switch is an on/off switch that rocks (rather than trips) when pressed, which means one side of the switch is raised while the other side is depressed much like a rocking horse rocks back and forth. Designed for use in low voltage and current level circuits, rocker switches are available in a variety of sizes, ratings, colors, and termination types.
A rocker switch may be marked with a circle (for "on") and a horizontal dash or line (for "off") on the other to let the user known if the device is on or off. They may also be lighted to indicate on or off status.
A rocker switch with independent circuitry can have a light activated on the face of the switch in both the on and off positions, which allows the switch to be found easily in the dark. With dependent circuitry, the light is activated only when the switch is on.
Rocker switches are commonly used in surge protectors, display monitors, computer power supplies, and automotives. Although they are found most often in portable appliances and electronics, rocker switches are also utilized in the communications, transportation, medical, and automobile industries.
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