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 15 
Wiring, Continued 
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The input cable (purchased separately) brings power and a control signal to the first 
actuator in a daisy chain configuration. See Figure 30 and Figure 31. 
CAUTION: 
Insert the plug into the GDE161.1N from the left to prevent damage to the 
cable wires. (See Figure 29) 
1.  The open bracket to the right of the actuator (See Figure 27) is used 
for  strain  relief  of  the  customer  purchased  cabling  (See  Required 
Tools). 
2.  Secure the cabling to the actuator bracket with a cable tie. (See 
Figure 30.) 
Modulating Control Input Cable 
985-133 
3 ft 
12 pk 
Figure 29.  Always Insert the Cable From the Left. 
Figure 30. Input Cable Installed in Bottom Three 
Contacts. 
Table 5. 
Daisy Chain Cables 
985-134 
12 ft 
12 pk 
985-135 
25 ft 
12 pk 
NOTE: 
You must select either 
the top 3 contacts or the 
bottom 3 contacts. 










