DCA
Page 20
6.4 mm
(0.25 in)
DCA
DC CURRENT
ALARM
UPPER
LOWER
ZERO
COVER
66 mm
(2.60 in)
76.2 mm
(3.00 in)
167 mm
(6.56 in)
186 mm
(7.31 in)
154 mm
(6.08 in)
63.5 mm
(2.50 in)
76.2 mm
(3.00 in)
63.3 mm
(2.49 in)
95 mm
(3.75 in)
102 mm
(4.00 in)
9.5 mm
(0.38 in)
Figure 15.
STD DCA Outline Dimensions, Including DPDT Option
When making the electrical connections for units in
explosion-proof enclosures, route the wiring through
the conduit hubs in the enclosure with enough slack
to reach the appropriate terminal.
Units in oil- or water-tight NEMA enclosures require
the use of Myer Scru-Tite (or equivalent) fittings to
maintain the enclosure integrity when routing wiring
conduit to or from the DCA.
WARNINGS
Do not apply power to the DCA until all
connections are secure. The uncovered
power input terminals of ac-powered STD
DCA’s present an electric shock hazard.
Always turn off the power to the unit
before servicing.
