INSCRIPTION ACTUATOR/INDICATOR ON LABEL HOLDER INSCRIPT.LABEL FOR SNAPPING ON = BACKING PLATE LABEL SIZE 17.5 X 28 MM WITH GRAPHICAL SYMBOL: DIRECTION OF ARROW TO THE RIGHT BLACK WITH WHITE PRINT !!! Phased-out product !!! SIRIUS ACT 3SU1 is successor Preferred successor type is >>3SU1900-0AD16-0QR0<<