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

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

The Siemens GCA151.1U is a fail-safe spring return damper actuator with a self-centering shaft coupling, rated at 160 in-lb and 5W. It operates on 24V AC/DC input with a 0 to 10V DC output signal, supporting CW/CCW…

SKU 3G-OTH-67738

Brand
Siemens
Item
Actuator: Dampers, Proportional, Spring Return, 160 in-lb, 24V AC/DC, Hardwired
Category
Fail-Safe Actuators with Spring Return
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Technical Specifications

Siemens
Manufacturer Part Number
GCA151.1U
Type
Proportional, Spring Return, 160 in-lb, Hardwired, NEMA 2 / IP54
AC/DC
24V
Shaft Type
Self-Centering Shaft Coupling
Power Rating
5W
Input Voltage
24V AC/DC
Output Signal
0 to 10V DC
Plenum Rating
Not Plenum Rated
Shaft Rotation
CW/CCW
Auxiliary Switch Included
No
Electrical Connection Type
Hardwired
For Use With Building Automation Systems
Building Automation System Compatible
View Full Spec Sheet

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

Product Description

The Siemens GCA151.1U is a fail-safe spring return damper actuator with a self-centering shaft coupling, rated at 160 in-lb and 5W. It operates on 24V AC/DC input with a 0 to 10V DC output signal, supporting CW/CCW shaft rotation. This hardwired, NEMA 2 / IP54 rated actuator is compatible with building automation systems and is not plenum rated.

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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Actuator: Dampers/Economizers, On/Off, Spring Return, 20 in-lb, 24V AC/DC, NEMA 1 / IP40 (MPN GQD121.1P). Key specifications — Manufacturer Part Number: GQD121.1P; Shaft Type: Set Screw Shaft Coupling; Shaft Rotation: CW/CCW; Stroke Degree: 90°; Plenum Rating: Plenum Rated; Power Rating: 4.5W; Input Voltage: 24V AC/DC; Brand: SIEMENS.
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