Siemens GMA121.1P Fail-Safe Spring Return Actuator
The Siemens GMA121.1P is a fail-safe damper actuator with spring return, featuring a self-centering shaft coupling and a 90° stroke with CW/CCW rotation. It operates on 24V AC/DC with a 3.5W power rating and provides…
SKU 3G-OTH-67546
Also listed as: GMA1211P · GMA121 1P · GMA121-1P
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Product Description
The Siemens GMA121.1P is a fail-safe damper actuator with spring return, featuring a self-centering shaft coupling and a 90° stroke with CW/CCW rotation. It operates on 24V AC/DC with a 3.5W power rating and provides a 0 to 10V DC output signal. This plenum-rated actuator is hardwired and compatible with building automation systems.
Frequently Asked Questions
What is the Siemens GMA121.1P damper actuator used for?
The Siemens GMA121.1P is a fail-safe spring return actuator used to control dampers in HVAC and building automation systems. It provides 62 in-lb torque, operates on 24V AC/DC, and features a self-centering shaft coupling for 90° stroke rotation.
What are the specifications of the Siemens GMA121.1P actuator?
The Siemens GMA121.1P is an on/off spring return actuator with 62 in-lb torque, 24V AC/DC input, 3.5W power rating, and 0 to 10V DC output. It has a self-centering shaft coupling, 90° stroke, CW/CCW rotation, and is plenum rated with hardwired cables.
Where to buy the Siemens GMA121.1P actuator worldwide?
3G Electric supplies the Siemens GMA121.1P damper actuator to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this fail-safe spring return actuator.
How to install the Siemens GMA121.1P spring return actuator?
Mount the Siemens GMA121.1P on the damper shaft using the self-centering coupling, ensuring 90° stroke alignment. Connect 24V AC/DC power and 0 to 10V DC output per wiring diagram. Verify spring return direction (CW/CCW) before commissioning. Always follow Siemens installation instructions.
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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.
