Springer controls n5xsmz0n, 3-position selector , 1-0-2, maintained, black 2 n5b11vn (2no,2nc) contacts are included with this selector to ensure that it will be able to accommodate all normal motor applications. This oil-tight 3-position selector is designed to fit in an industry standard 22 mm panel hole. Please reference the “contacts actuated/position” column to ensure that this selector is ideal for your motor control application.