Siemens Actuator

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Siemens

Siemens Pneumatic Valve Actuator for 2 in Valves

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This fail-safe zone valve actuator operates on 24V AC with spring return mechanism. It is compatible with 599 series valves and normally open valve action. Used in HVAC systems to control water or steam flow in heating and cooling zones, ensuring valve closure during power loss.

Siemens

Siemens SFP71U Fail-Safe Zone Valve Actuator, 24V AC, Spring Return, 599 Series

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Fail-safe globe valve actuator for use with VVF series valves. Operates on 24V AC and is configured for normally closed valve action. Provides electric actuation for flow regulation in HVAC, district heating, and process control systems.

Siemens

Siemens SKC62UA Fail-Safe Globe Valve Actuator

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On/off spring return actuator for fire and smoke dampers in HVAC systems. Provides 200 lb-in torque, accepts 1/2" to 1" round shaft, operates on 120V AC. Plenum rated with NEMA 1 / IP40 enclosure and hardwired connection.

Siemens

Siemens GVD221.1U Fire & Smoke Rated Actuator

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On/Off spring return actuator for damper control in HVAC systems. Provides 160 in-lb torque over 90° stroke with CW/CCW rotation. Operates on 24V AC/DC, 5W. Includes auxiliary switch and 0 to 10V DC output signal. Self-centering shaft coupling. Plenum rated, hardwired connection.

Siemens

Siemens GCA126.1P Fail-Safe Actuator with Spring Return, 160 in-lb, 24V AC/DC

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On/Off fail-safe spring return actuator for HVAC damper control. Provides 160 in-lb torque, operates on 24V AC/DC, and includes a 0 to 10V DC output signal and auxiliary switch. Features self-centering shaft coupling with CW/CCW rotation. Hardwired connection with NEMA 2 / IP54 enclosure. Suitable for building automation systems in commercial and industrial ventilation applications.

Siemens

Siemens GCA126.1U Fail-Safe Spring Return Damper Actuator

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Proportional fail-safe damper actuator with spring return for HVAC building automation systems. Provides 90° stroke with CW/CCW rotation, 160 in-lb torque, and 0 to 10V DC output signal. Features self-centering shaft coupling and plenum-rated hardwired cables. Operates on 24V AC/DC, 5W power rating.

Siemens

Siemens GCA151.1P Proportional Spring Return Damper Actuator

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Non-spring return, floating point actuator for 90° stroke dampers in HVAC building automation systems. Provides 44 in-lb torque, operates on 24V AC with 0 to 10V DC output, and features a set screw shaft coupling for CW/CCW rotation. Plenum rated with NEMA 2 / IP54 enclosure.

Siemens

Siemens GDE131.1P Non-Fail-Safe Damper Actuator

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Proportional non-spring return damper actuator with 177 in-lb torque, 24V AC/DC input, and 0 to 10V DC output signal. Provides 90° stroke with CW/CCW rotation and self-centering shaft. Hardwired connection with NEMA 2 / IP54 enclosure. Used in HVAC building automation systems to modulate air dampers in air handling units, VAV boxes, and zone dampers for precise airflow control.

Siemens

Siemens GEB161.1U Non-Spring Return Proportional Damper Actuator

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This non-fail-safe damper actuator is designed for use in HVAC systems to control dampers in air handling units, zone dampers, and ventilation controls. It features a self-centering shaft, operates on 24V AC/DC input voltage, and provides a 0 to 10V DC output signal for precise positioning. With 53 in-lb torque and a floating-point, non-spring-return design, it is suitable for applications requiring reliable modulation without fail-safe functionality.

Siemens

Siemens GNP191.1P Non-Fail-Safe Actuator

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Frequently asked questions

Common questions about Siemens Actuator from 3G Electric.

How do I size a Siemens actuator for my valve or damper?

Match the actuator's torque (for dampers) or force (for valves) to the requirement at your operating pressure drop. Check the valve or damper manufacturer's data for minimum torque/force, then select a Siemens actuator that exceeds it by at least 30% for reliable operation.

What is the difference between fail-safe and non-fail-safe Siemens actuators?

Fail-safe actuators use a spring return to move the valve or damper to a safe position (open or closed) when power is lost, protecting processes and equipment. Non-fail-safe actuators hold position on power loss. Choose fail-safe for critical applications like burner or safety shutoff.

Are Siemens fire and smoke rated actuators available for worldwide shipping?

Yes, 3G Electric stocks Siemens fire and smoke rated actuators and ships worldwide. These models meet stringent safety standards for use in smoke management systems. Confirm your required certification (e.g., UL, EN) and voltage before ordering to ensure compliance.