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Siemens Actuator: Dampers, On/Off, Spring Return, 160 in-lb, 24V AC/DC - Fail-Safe Actuators with Spring Return
SiemensFail-Safe Actuators with Spring Return

Siemens Actuator: Dampers, On/Off, Spring Return, 160 in-lb, 24V AC/DC

The Siemens GCA121.1P is a fail-safe actuator with spring return for dampers, featuring a self-centering shaft coupling and 90° stroke with CW/CCW rotation. It operates on 24V AC/DC input with a 0 to 10V DC output…

SKU 3G-OTH-67693

Also listed as: GCA1211P · GCA121 1P · GCA121-1P

Brand
Siemens
Item
Actuator: Dampers, On/Off, Spring Return, 160 in-lb, 24V AC/DC
Category
Fail-Safe Actuators with Spring Return
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
Manufacturer Part Number
GCA121.1P
Type
On/Off, Spring Return, 160 in-lb, Hardwired Plenum Rated Cables
AC/DC
24V
Shaft Type
Self-Centering Shaft Coupling
Input Voltage
24V AC/DC
Output Signal
0 to 10V DC
Plenum Rating
Plenum Rated
Stroke Degree
90°
Shaft Rotation
CW/CCW
Auxiliary Switch Included
No
Electrical Connection Type
Hardwired
For Use With Building Automation Systems
Building Automation System Compatible

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens GCA121.1P is a fail-safe actuator with spring return for dampers, featuring a self-centering shaft coupling and 90° stroke with CW/CCW rotation. It operates on 24V AC/DC input with a 0 to 10V DC output signal, is plenum rated, and is compatible with building automation systems.

Frequently Asked Questions

What is the Siemens GCA121.1P actuator used for?

The Siemens GCA121.1P is a fail-safe spring return actuator for dampers in building automation systems. It provides on/off control with 160 in-lb torque, operates on 24V AC/DC, and features a self-centering shaft coupling for 90° stroke applications.

What are the specifications of the Siemens GCA121.1P?

The Siemens GCA121.1P is an on/off spring return actuator with 160 in-lb torque, 24V AC/DC input, 0 to 10V DC output, and 90° stroke with CW/CCW rotation. It is plenum rated, hardwired, and compatible with building automation systems.

Where to buy the Siemens GCA121.1P worldwide?

3G Electric supplies the Siemens GCA121.1P actuator to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this fail-safe damper actuator.

How to install the Siemens GCA121.1P actuator?

Mount the Siemens GCA121.1P on the damper shaft using the self-centering coupling, ensuring 90° stroke alignment. Connect 24V AC/DC power and hardwired plenum-rated cables per local codes. Test spring return function before commissioning.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens fail-safe actuators with spring return. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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