The 51S30-01-1-12N is a single-deck rotary switch from the Series 51 family, configured with one pole and twelve non-shorting positions. It operates with a 30° angle of throw between positions and features a standard 1/8" shaft with an integrated shaft and panel seal for watertightness. This switch utilizes solder lug terminals and is rated to switch loads up to 200 mA at 28 Vdc resistive, with a continuous carry rating of 6 amperes. With a mechanical life of 25,000 cycles and robust construction, it is well-suited for applications in instrumentation, communication equipment, and industrial controls where reliable manual signal routing is required.