Rockwell Automation 2755 AdaptaScan Bar Code Readers - Manual (Page 42)

Installing the Wiring Base and Power Supply 3–7
Conduit
Use flexible conduit whenever possible. This allows you to adjust
the position of the Reader (when mounting bracket is used).
Conduit Fitting
Conduit
Wires
Hole Plug
(U.S. )
Hole Plug
(Metric )
User Supplied
Hole Plugs
Three hole plugs are supplied with the wiring base. Use these plugs
on unused conduit openings to maintain the NEMA Type 4 rating.
U.S. Wiring Base (Catalog No. 2755-NB40)
The conduit opening for the U.S. wiring base uses a NPSC threaded
plug. Use Teflon tape or other thread sealant when inserting the hole
plug in the conduit opening to maintain a NEMA Type 4 seal.
Tighten hole plug with a 3/8” hex wrench.
Metric Wiring Base (Catalog No. 2755-NB41)
The conduit opening for the metric version requires an O-ring with
the hole plug. Place the O-ring on the hole plug, then insert the hole
plug in the conduit opening and tighten with a flat blade screwdriver.