Data Sheet for Product

Technical Instructions Pressure Independent Control
Document Number 155-777 SQD Series Electromotoric Actuators
December 22, 2011
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as
design improvements are introduced. Product or company names mentioned herein may be trademarks of their respective owners.
© 2011 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
USA
1-847-215-1000
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Y1 Signal input; stem extends, valve
opens
Y2 Signal input; stem retracts, valve
closes
G System potential (SP), 24 Vac
Wiring Diagrams
SQD85.03U
NEUT
CONTROLLER
ACTUATOR
EARTH GROUND
ISOLATING CLASS 2
TRANSFORMER FOR
24 Vac POWER
120 Vac
1
0
Y2
Y1
G
24
Vac
EA0795R1
WARNING:
Terminal connection “G” is 24 Vac
Hot (system potential) not ground
(system neutral).
SQD65U
G, G0 24 Vac operating voltage
G System potential
G0 System neutral
Y 0 to 10 Vdc control signal
R Input for 0 to 1000 ohm remote signal
M Neutral reference for position feedback
U Output for 0 to 10 Vdc position feedback
Dimensions
Figure 1. Dimensions of the SQD Series Actuator, Shown in Inches (Millimeters).
Service Envelope
Minimum access space recommended
4 inch (100 mm) 8 inch (200 mm)
Figure 2. Dimensions in Inches (Millimeters).
Document No. 155-777
Printed in the USA
Page 4