2 Position Selector Lock Rotary Switch A rotary switch is a switch operated by rotation . These are often chosen when more than 2 positions are needed, such as a three-speed fan or a CB radio with multiple frequencies of reception or "channels". ... Thus a rotary switch provides greater pole and throws capabilities than simpler switches do. Specification:2 Position Selector Lock Rotary Switch Product Name :Push Button Switch Contact Type :1NO 1NC (DPST) Action Type: Latching(Rotary Selector) Position of Number :2 Position Insulation Voltage Max : 600V Ith 6A Ui AC 250V Terminal Quantity: 4 Panel Cutout Diameter :25mm / 1" Fit Panel Max. Thickness : 6mm / 0.24" Total Size(Approx) :3.2 x 3.7 x 8.6cm / 1.3" x 1.5" x 3.4" (L*W*H) External Material :Plastic, Metal Color :Black, Clear Net Weight :112g Package Content : 2 x Push Button Switch Features: 1NO 1NC (DPST) contact type, Black 2 Position Rotary Selector, Latching action, 25mm panel cutout diameter. Used widely to control the electromagnetic starter, contactor, relay, and other automatic control electric circuits. Package includes: