Your current location is
United Kingdom (£)
Want to ship parts to a different country? Use the drop-down menu below to navigate to the relevant site.


Marvo Part ID: MV-AYYZ

Sold out


Stars Anna

‘I can recommend quick, efficient, and professional.’

Stars Irene

‘Fast delivery and prompt action.’


Specification Description
Part Number GCA126.1E
Alternative Part Number GCA1261E
Manufacturer Siemens
Product Identification Electromotoric damper actuators for air dampers
Voltage Suitable for use with 24V control systems
Control Type 2-position control, 3-position control, and modulating control (0-10V) as per product range
Torque Capable of delivering the necessary torque for air damper applications
Compatibility Compatible with a range of Siemens controllers and building management systems
Construction Robust construction for industrial environments
Compliance Conforms to relevant Union harmonisation legislation including Low Voltage and EMC Directives
Application Designed for use in residential, commercial, light-industrial, and industrial environments
Features May include features such as quick-running, spring return, and adjustable mechanical limits
Accessories Compatible with a range of Siemens accessories for enhanced functionality

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.


What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.


What countries can Marvo deliver to?

Marvo currently delivers to the United Kingdom (excluding Northern Ireland), the United States of America and Germany. If you cannot find your delivery address at checkout, this is most likely because Marvo does not currently deliver to this location. There are ongoing efforts to make Marvo accessible to a global market, keep your eyes peeled as our service expands to new locations. All orders are sold with a streamlined delivery process ensuring that you get your part, fast. Marvo is designed to offer you quick, easy and reliable access to critical components and uses well established global shipping services, including but not limited to DHL, UPS and FedEx.


Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.


Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.


How do I create an account?

Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.


Peace of mind with every purchase


Marvo Approved

A seal of quality that ensures each part is fully inspected, every time. Purchase with confidence thanks to Marvo Approved.


Full warranty

All parts are covered by a comprehensive warranty. If something goes wrong, I’ll put it right.


Priority delivery

Advanced tracking and a streamlined delivery process ensure that you get your part, fast.


Committed to you

Engineered to ensure that you always have a quick, easy and reliable place to source automation and control components.

GCA126.1E Product Description

The Siemens GCA126.1E is a high-quality electromotoric damper actuator designed for precise control of air dampers in ventilation and air conditioning systems within commercial and industrial environments. This robust actuator is engineered to deliver reliable performance and is compatible with a wide range of damper sizes, making it a versatile solution for building automation systems.

Featuring a compact and durable design, the GCA126.1E ensures easy installation and maintenance. It operates efficiently with low energy consumption, contributing to the overall energy efficiency of HVAC systems. The actuator's precision control allows for accurate adjustment of damper positions, ensuring optimal airflow and indoor climate conditions.

The GCA126.1E is constructed to meet the rigorous standards set by Siemens, ensuring high-quality operation and longevity. It is compliant with relevant EU directives and harmonisation legislation, including the Low Voltage Directive, EMC Directive, and RoHS Directive, which attest to its safety and environmental considerations.

Ideal for system integrators, facility managers, and HVAC professionals, the Siemens GCA126.1E damper actuator is a reliable choice for enhancing the performance and efficiency of air control systems.

Frequently Asked Questions

What is the function of this electronic part?

The Siemens GCA126.1E is an electromotoric damper actuator designed for controlling air dampers in ventilation and air conditioning systems for buildings.

Can this actuator be used for outdoor applications?

The GCA126.1E is primarily intended for indoor use within HVAC systems. For outdoor applications, it is important to ensure that the actuator is housed in a suitable enclosure to protect it from environmental conditions.

What type of control input does the actuator accept?

This actuator typically accepts either a 2-position (on/off) control or a modulating control signal, depending on the specific model and configuration.

What are the voltage requirements for this actuator?

The actuator operates on either 24V or 230V power supplies, again depending on the specific model you have.

What is the torque output of this actuator?

The Siemens GCA126.1E provides a torque output suitable for small to medium-sized air dampers. For exact specifications, please refer to the product documentation.

Does this actuator come with any safety features?

Yes, the actuator includes features such as manual override and position indication, which can be used for safety and diagnostic purposes.

How can I mount this actuator to a damper?

The actuator is designed for direct coupling to damper shafts. It comes with a universal clamp for easy mounting.

Is there a need for initial calibration or setup?

The GCA126.1E is designed to be user-friendly and typically does not require extensive setup or calibration. However, some initial configuration may be necessary to match the actuator to the specific damper and control system.

What maintenance does this actuator require?

The actuator is designed to be low-maintenance, but regular inspections and functional tests are recommended to ensure reliable operation.

Are there any compatible accessories for this actuator?

Yes, there are various accessories available for the actuator, such as auxiliary switches and feedback potentiometers, to enhance its functionality.