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SiemensFail-Safe Actuators with Spring Return

Siemens Electric Actuator: HVAC Systems, Floating Point, Spring Return, 160 lb-in

The SIEMENS GCA166.1P is a fail-safe electric actuator with spring return for HVAC systems, featuring a floating-point control mode. It operates on 24V AC/DC with a running power rating of 5 W and includes 2…

SKU 3G-OTH-68523

Brand
Siemens
Item
Electric Actuator: HVAC Systems, Floating Point, Spring Return, 160 lb-in
Category
Fail-Safe Actuators with Spring Return
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Technical Specifications

Siemens
Manufacturer Part Number
GCA166.1P
Type
Floating Point, Spring Return, 160 lb-in, NEMA 2 / IP54
AC/DC
24V
Power Rating
5 W (Running)
Input Voltage
24V AC/DC
Output Signal
2 Auxiliary Switch
Plenum Rating
Plenum Rated
Auxiliary Switch Included
Yes
Electrical Connection Type
Hardwired
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS GCA166.1P is a fail-safe electric actuator with spring return for HVAC systems, featuring a floating-point control mode. It operates on 24V AC/DC with a running power rating of 5 W and includes 2 auxiliary switches as the output signal. This hardwired actuator is plenum rated and has a torque of 160 lb-in, with a NEMA 2 / IP54 enclosure rating.

Frequently Asked Questions

What is the Siemens GCA166.1P electric actuator used for?

The Siemens GCA166.1P is a fail-safe electric actuator with spring return designed for HVAC systems. It controls dampers or valves in commercial buildings, providing reliable positioning via a floating-point control mode. Its plenum rating and NEMA 2 / IP54 enclosure make it suitable for indoor air-handling environments.

What are the specifications of the Siemens GCA166.1P actuator?

The Siemens GCA166.1P operates on 24V AC/DC with a running power rating of 5 W and holding power of 3 W. It delivers 160 lb-in torque, includes 2 auxiliary switches, and is hardwired. The enclosure is NEMA 2 / IP54, and it is plenum rated for HVAC applications.

Where to buy the Siemens GCA166.1P actuator worldwide?

You can source the Siemens GCA166.1P actuator through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this Siemens HVAC actuator.

How to install the Siemens GCA166.1P spring return actuator?

Mount the Siemens GCA166.1P actuator securely to the damper shaft using the provided bracket. Wire the 24V AC/DC input and auxiliary switches per the wiring diagram, ensuring proper polarity. The spring return engages on power loss; test rotation before commissioning. Follow Siemens installation guidelines for best results.

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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