Features For use with Model 3680 digital pushbutton precision potentiometer ■ H-385 - Panel Seal Assembly Physical Characteristics1 Material (Boot)....................................................................................Clear silicone rubber Material (Frame).....................................................................................Rigid black plastic Expected Life........................................................................100,000 actuations minimum Weight H-385-1......................................................................................Approximately 7.09 gm H-385-2......................................................................................Approximately 8.50 gm H-385-3......................................................................................Approximately 9.92 gm H-385-4....................................................................................Approximately 11.34 gm H-385-5....................................................................................Approximately 12.76 gm H-385 MOUNTING INSTRUCTIONS 1. Cut out and drill panel1 per chart. 2. Install snap-in potentiometer2. 3. Locate silicone boot3 and frame4 over potentiometer and holes. 4. Attach panel seal assembly to panel with two #6 screws (not supplied). 1 Application Data • Protects front of the pot from unwanted entry of rain, dust, grease or oils • Transparent for easy viewing of numerals • Tear resistant for long life • Matte finish black plastic frame to complement most front panels Bourns® Model H-385 Panel Seal Assembly minimizes accidental entry of liquids or foreign matter through the front of the Model 3680 Family Potentiometer. PANEL CUT-OUT/HOLE DIMENSIONS RECOMMENDED HOLE FOR TWO #6 SCREWS (NOT SUPPLIED) 10.54 ± .13 (.415 ± .005) .25 "C" ± (.010) 21.08 ± .25 (.830 ± .010) 41.40 ± .38 (1.63 ± .015) .25 "A" ± (.010) 6.73 ± .13 (.265 ± .005) .25 "B" ± (.010) For Use With Part Number 3681 3682 3683 3684 3685 H-385-1 H-385-2 H-385-3 H-385-4 H-385-5 Frame Dimensions “C” 40.44 (1.592) 50.60 (1.992) 60.76 (2.392) 70.92 (2.792) 81.08 (3.192) 1 Panel Cutout/ Hole Dimensions “A” “B” 15.75 (.620) 29.21 (1.150) 25.91 (1.020) 39.37 (1.550) 36.07 (1.420) 49.53 (1.950) 46.23 (1.820) 59.69 (2.350) 56.39 (2.220) 69.85 (2.750) At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted. DIMENSIONS: REV. 04/03 Specifications are subject to change without notice. MM (IN.) 2 3 4