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Siemens Actuator: Dampers/Economizers, Proportional, Spring Return, 20 in-lb, 24V AC/DC - Fail-Safe Actuators with Spring Return
SiemensFail-Safe Actuators with Spring Return

Siemens Actuator: Dampers/Economizers, Proportional, Spring Return, 20 in-lb, 24V AC/DC

The Siemens GQD151.1P is a fail-safe actuator with spring return for dampers and economizers, featuring a 90° stroke, CW/CCW shaft rotation, and a set screw shaft coupling. It operates on 24V AC/DC input with a 3W…

SKU 3G-OTH-67091

Brand
Siemens
Item
Actuator: Dampers/Economizers, Proportional, Spring Return, 20 in-lb, 24V AC/DC
Category
Fail-Safe Actuators with Spring Return
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Technical Specifications

Siemens
Manufacturer Part Number
GQD151.1P
Type
Proportional, Spring Return, 20 in-lb, NEMA 1 / IP40
AC/DC
24V
Shaft Type
Set Screw Shaft Coupling
Power Rating
3W
Input Voltage
24V AC/DC
Output Signal
2 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
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens GQD151.1P is a fail-safe actuator with spring return for dampers and economizers, featuring a 90° stroke, CW/CCW shaft rotation, and a set screw shaft coupling. It operates on 24V AC/DC input with a 3W power rating and provides a 2 to 10V DC proportional output signal. This plenum-rated actuator is compatible with building automation systems and has a NEMA 1 / IP40 enclosure.

Frequently Asked Questions

What is the Siemens GQD151.1P actuator used for?

The Siemens GQD151.1P is a fail-safe spring return actuator designed for dampers and economizers in HVAC building automation systems. It provides proportional control with a 2 to 10V DC output signal, ensuring reliable positioning of air dampers in plenum-rated environments.

What are the specifications of the Siemens GQD151.1P actuator?

The Siemens GQD151.1P operates on 24V AC/DC input with a 3W power rating, delivers 20 in-lb torque, and features a 90° stroke with CW/CCW shaft rotation. It includes a set screw shaft coupling, NEMA 1 / IP40 enclosure, and is plenum rated for use in air-handling spaces.

Where to buy the Siemens GQD151.1P actuator worldwide?

3G Electric supplies the Siemens GQD151.1P actuator to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this fail-safe spring return actuator.

How to install the Siemens GQD151.1P spring return actuator?

Mount the Siemens GQD151.1P directly onto the damper shaft using the set screw coupling, ensuring the shaft rotates freely through the full 90° stroke. Connect 24V AC/DC power and the 2 to 10V DC control signal per the wiring diagram. Verify spring return direction 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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