Data Sheet for Product

OpenAir® Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac – Modulating Control Document Number 155-187P25
May 13, 2021
Siemens Industry, Inc. Page 5
Accessories,
Continued
Figure 8.
985-133: 0 to 10 Vdc input cable
3 ft, 12 pk
Figure 9.
985-134: Daisy chain cable 12 ft, 12 pk
985-135: Daisy chain cable 25 ft, 12 pk
Figure 10. NEMA Type 4X Weather Shield.
ASK75.7U: GDE and GLB Actuators are
UL listed to meet NEMA Type 4X
requirements (a degree of protection
against falling dirt, rain, sleet, snow,
windblown dust, splashing water, hose-
directed water, corrosion, and damage
from external ice formation) when installed
with an ASK75.7U Weather Shield and
outdoor-rated conduit fittings. This weather
shield may be mounted in any orientation.
For dimensions, see Figure 32.
Actuator
Components
Figure 11. Parts of the Actuator.
Legend
1. Base plate
2. Positioning scale for angle of rotation
3. Slope adjustment
4. Offset (start point) adjustment
5. DIP switches
6. Cover for DIP switches
7. Connection cables
8. Connection cables
9. Manual override
10. Coupling bushing
11. Factory installed 1/2-inch guide
12. Auxiliary switch A
13. Auxiliary switch B
14. Position indicator
15. Adjustment lever with
locking screw (4 mm hex)
16. Set screw for mechanical
range stop (4 mm hex)
17. Mounting bracket