NKK Switches Half-Inch Diameter Process Sealed Rotary MRA112-CG

The MRA112 is a half-inch diameter, process-sealed rotary switch with a single pole and 2 to 12 position settings, featuring a shaft actuator with PC terminals. It has a 30° indexing, nonshorting contact timing, and a self-cleaning sliding contact mechanism. The switch is rated for 250mA at 125V AC resistive load, with a contact resistance of 10 milliohms maximum, insulation resistance of 100 megohms minimum at 500V DC, and dielectric strength of 1,000V AC for one minute. Mechanical life is 30,000 operations minimum, and electrical life is 10,000 operations minimum. Operating torque ranges from 0.02 to 0.07 Nm. The housing is zinc alloy with zinc plating, shaft is brass with nickel plating, and contacts are copper with silver plating. Operating temperature range is -10°C to +70°C. Mounting torque is 0.686 Nm. The switch is designed for low-voltage, low-current logic-level circuits and is not UL or CSA recognized.