GCA
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SIEMENS OpenAir™ Rotary version with spring return, AC 24 V / DC 24.. .48 V / AC 230 V Electronic motor driven actuators for two-position, three-position, and modulating control, nominal torque 18 Nm, with spring return, self-centering shaft adapter, mechanically adjustable span between 0...90°, pre-wired with 0.9 m long connection cables. Type-specific variations with adjustable offset and span for the positioning signal, position indicator, feedback potentiometer and adjustable auxiliary switches for supplementary functions. Remarks This data sheet provides a brief overview of these actuators. Please refer to the Tech nical Basics in document Z4613en for a detailed description as well as information on safety, engineering notes, mounting and commissioning. • For damper areas up to 3 m2, friction-dependent. • In ventilation sections where the actuator must move to the zero position (emergency position) during power failure. • For dampers having two actuators on the same damper shaft (tandem-mounted actuators or Powerpack). Smart Infrastructure

Type summary Note Delivery Accessories, spare parts Potentiometer cannot be added in the field. For this reason, order the type that includes the required options. Individual parts such as position indicator and other mounting materials for the actuator are not mounted on delivery. Accessories to functionally extend the actuators are available, e.g., linear/rotary sets, auxiliary switches (1 or 2 switches) and weather protection cover; see data sheet N4699. Siemens Smart Infrastructure Air damper actuators GCA...1, Rotary version with spring return

Operating voltage AC / Frequency Operating voltage DC Power consumption Running Running Holding _Holding Operating voltage / Frequency Power consumption Running _Holding Function data Nominal torque Maximum torque (blocked) Nominal rotary angle / Max. rotary angle Runtime for rotary angle 90° (motor operation) Closing time with return spring (on power failure) Positioning signal for GCA13..1 Positioning signal for GCA16..1, Characteristic functions for GCA161.1, 166.1 for GCA163.1, 164.1 Position indicator for GCA16..1 Feedback potentiometer for GCA132.1 Auxiliary switch for GCA..6.1, 164.1...

Disposal The device is considered an electronics device for disposal in terms of European Directive 2012/19/EU and may not be disposed of as domestic garbage. Dispose of the device through channels provided for this purpose. Comply with all local and currently applicable laws and regulations. Two-position control Three-position control Modulating control Connection diagrams Single pole single throw (SPST) GCA12..1 4/6 Siemens Smart Infrastructure Air damper actuators GCA...1, Rotary version with spring return

Siemens Smart Infrastructure Air damper actuators GCA...1, Rotary version with spring return

Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1 a 6300 Zug Switzerland Tel. +41 58-724 24 24 © Siemens Switzerland Ltd, 2006 www.siemens.com/buildingtechnologies Technical specifications and availability subject to change without notice. Siemens Smart Infrastructure Air damper actuators GCA...1, Rotary version with spring return