Features
■ For use with Model 3680 digital
pushbutton precision potentiometer
H-385 - Panel Seal Assembly
Physical Characteristics1
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.
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
4. Attach panel seal assembly to panel
with two #6 screws (not supplied).
3
4
2
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
(.010)
"C" ±
21.08 ± .25
(.830 ± .010)
41.40 ± .38
(1.63 ± .015)
.25
(.010)
"A" ±
6.73 ± .13
(.265 ± .005)
.25
(.010)
"B" ±
Frame
Panel Cutout/
For Use With
Part Number
Dimensions
“C”
Hole Dimensions
“A”
“B”
3681
3682
3683
3684
3685
H-385-1
H-385-2
H-385-3
H-385-4
H-385-5
40.44 (1.592)
50.60 (1.992)
60.76 (2.392)
70.92 (2.792)
81.08 (3.192)
15.75 (.620)
25.91 (1.020)
36.07 (1.420)
46.23 (1.820)
56.39 (2.220)
29.21 (1.150)
39.37 (1.550)
49.53 (1.950)
59.69 (2.350)
69.85 (2.750)
1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
MM
DIMENSIONS:
(IN.)
REV. 04/03
Specifications are subject to change without notice.