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SiemensFail-Safe Actuators with Spring Return

Siemens Electric Actuator: HVAC Systems, Spring Return, 160 lb-in, 24V AC/DC, Hardwired

The Siemens GCA156.1U is a fail-safe electric actuator with spring return for HVAC systems, operating on 24V AC/DC with a running power rating of 5 W and a holding power of 3 W. It features a hardwired electrical…

SKU 3G-OTH-68489

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

Siemens
Manufacturer Part Number
GCA156.1U
Type
Spring Return, 160 lb-in, Hardwired, NEMA 2 / IP54
AC/DC
24V
Power Rating
5 W (Running)
Input Voltage
24V AC/DC
Output Signal
2 Auxiliary Switch
Auxiliary Switch Included
Yes
Electrical Connection Type
Hardwired
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens GCA156.1U is a fail-safe electric actuator with spring return for HVAC systems, operating on 24V AC/DC with a running power rating of 5 W and a holding power of 3 W. It features a hardwired electrical connection, includes two auxiliary switches, and is rated NEMA 2 / IP54.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Siemens GCA156.1U electric actuator used for?

The Siemens GCA156.1U is a fail-safe spring return actuator designed for HVAC systems such as dampers and valves. It provides 160 lb-in torque on 24V AC/DC power, ensuring reliable positioning and emergency closure in commercial buildings, hospitals, and industrial ventilation.

What are the specifications of the Siemens GCA156.1U actuator?

The Siemens GCA156.1U operates on 24V AC/DC with 5 W running and 3 W holding power. It includes two auxiliary switches, a hardwired connection, and NEMA 2 / IP54 protection. The spring return mechanism delivers 160 lb-in torque for fail-safe HVAC damper control.

Where to buy the Siemens GCA156.1U actuator worldwide?

3G Electric supplies the Siemens GCA156.1U 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 GCA156.1U spring return actuator?

Mount the Siemens GCA156.1U securely to the damper shaft using the provided bracket. Connect 24V AC/DC power via the hardwired terminals, ensuring polarity matches. Wire the two auxiliary switches for position feedback. Test spring return operation 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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