The 71BDF30-03-1-AJN is a multi-deck rotary switch from the Series 71 family, designed for versatile circuit control. It features a 1/4-inch diameter shaft, a 30° angle of throw, and PC mount terminals for direct board installation. The switch is configured with three decks and one pole per deck, utilizing non-shorting (break-before-make) contacts. Its key feature is the adjustable stop mechanism, which allows the user to define the number of active positions from 2 to 12. This adaptability makes it ideal for prototyping, test equipment, and industrial control panels where position requirements may vary.