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

The MRA112 is a half-inch diameter, process-sealed rotary switch with a self-cleaning sliding contact, designed for low-voltage, low-current logic-level circuits. It features a brass shaft with nickel plating, a zinc alloy housing, and phosphor bronze contacts with silver plating. The switch has 12 positions with 30° indexing, a nonshorting (break-before-make) timing, and a maximum contact resistance of 10 milliohms. Its electrical capacity is 250mA at 125V AC, with an insulation resistance of 100 megohms minimum and a dielectric strength of 1,000V AC for one minute. The operating torque range is 0.02 to 0.07 Nm, and the mechanical life is 30,000 operations minimum. It operates within a temperature range of -10°C to +70°C and uses PC terminals. The mounting torque is 0.686 Nm. The MRA series is not UL recognized or CSA certified.