
Siemens Building Technology GCA121.1P Actuator
The Siemens GCA121.1P Actuator is a heavy-duty spring return damper actuator designed for critical fail-safe applications in commercial HVACR systems. Delivering 160 lb-in torque, this OpenAir electronic actuator provides reliable 2-position (On/Off) control for return air, mixed air, and exhaust dampers. Engineered with brushless DC motor technology and integrated stall protection, it ensures long-term operational stability and prevents motor burnout under high-load conditions.
Field installation is streamlined via the patented self-centering shaft coupling, which accommodates round shafts up to 1" or square shafts up to 3/4", eliminating the need for specialized adapters. The die-cast aluminum housing is NEMA 2 rated, providing the rugged durability required for mechanical rooms and demanding environments. This model includes a 3-foot plenum-rated cable for direct wiring without the necessity of external conduit in compliant zones. With a 90-second runtime and a rapid 15-second spring return, the GCA121.1P is the professional choice for maintaining building pressurization and safety protocols during power loss.
Key Benefits:- High Torque Output: Provides 160 lb-in (18 Nm) for large-scale damper control.
- Fail-Safe Security: Mechanical spring return ensures 100% closure or opening upon power failure.
- Precision Mounting: Self-centering coupling prevents side loading and reduces hardware wear.
- Contractor Ready: 24VAC/DC operation and plenum-rated cabling facilitate rapid field deployment.
- Manual Override: Integrated hex key override allows for manual positioning during system commissioning.
- What is the maximum damper area this unit can handle? While it depends on the damper seal type and static pressure, this 160 lb-in actuator typically handles dampers up to 40 sq. ft.
- Can I mount this in any orientation? Yes, the GCA series supports multi-position mounting, though vertical installation is recommended for optimal NEMA 2 protection.
- Does the GCA121.1P include auxiliary switches? No, this specific model (121.1P) is the base 2-position unit; for dual auxiliary switches, the GCA126.1P is the appropriate alternative.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $300.22
-65%$300.22
$105.08Siemens Building Technology GCA121.1P Actuator
The Siemens GCA121.1P Actuator is a heavy-duty spring return damper actuator designed for critical fail-safe applications in commercial HVACR systems. Delivering 160 lb-in torque, this OpenAir electronic actuator provides reliable 2-position (On/Off) control for return air, mixed air, and exhaust dampers. Engineered with brushless DC motor technology and integrated stall protection, it ensures long-term operational stability and prevents motor burnout under high-load conditions.
Field installation is streamlined via the patented self-centering shaft coupling, which accommodates round shafts up to 1" or square shafts up to 3/4", eliminating the need for specialized adapters. The die-cast aluminum housing is NEMA 2 rated, providing the rugged durability required for mechanical rooms and demanding environments. This model includes a 3-foot plenum-rated cable for direct wiring without the necessity of external conduit in compliant zones. With a 90-second runtime and a rapid 15-second spring return, the GCA121.1P is the professional choice for maintaining building pressurization and safety protocols during power loss.
Key Benefits:- High Torque Output: Provides 160 lb-in (18 Nm) for large-scale damper control.
- Fail-Safe Security: Mechanical spring return ensures 100% closure or opening upon power failure.
- Precision Mounting: Self-centering coupling prevents side loading and reduces hardware wear.
- Contractor Ready: 24VAC/DC operation and plenum-rated cabling facilitate rapid field deployment.
- Manual Override: Integrated hex key override allows for manual positioning during system commissioning.
- What is the maximum damper area this unit can handle? While it depends on the damper seal type and static pressure, this 160 lb-in actuator typically handles dampers up to 40 sq. ft.
- Can I mount this in any orientation? Yes, the GCA series supports multi-position mounting, though vertical installation is recommended for optimal NEMA 2 protection.
- Does the GCA121.1P include auxiliary switches? No, this specific model (121.1P) is the base 2-position unit; for dual auxiliary switches, the GCA126.1P is the appropriate alternative.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens GCA121.1P Actuator is a heavy-duty spring return damper actuator designed for critical fail-safe applications in commercial HVACR systems. Delivering 160 lb-in torque, this OpenAir electronic actuator provides reliable 2-position (On/Off) control for return air, mixed air, and exhaust dampers. Engineered with brushless DC motor technology and integrated stall protection, it ensures long-term operational stability and prevents motor burnout under high-load conditions.
Field installation is streamlined via the patented self-centering shaft coupling, which accommodates round shafts up to 1" or square shafts up to 3/4", eliminating the need for specialized adapters. The die-cast aluminum housing is NEMA 2 rated, providing the rugged durability required for mechanical rooms and demanding environments. This model includes a 3-foot plenum-rated cable for direct wiring without the necessity of external conduit in compliant zones. With a 90-second runtime and a rapid 15-second spring return, the GCA121.1P is the professional choice for maintaining building pressurization and safety protocols during power loss.
Key Benefits:- High Torque Output: Provides 160 lb-in (18 Nm) for large-scale damper control.
- Fail-Safe Security: Mechanical spring return ensures 100% closure or opening upon power failure.
- Precision Mounting: Self-centering coupling prevents side loading and reduces hardware wear.
- Contractor Ready: 24VAC/DC operation and plenum-rated cabling facilitate rapid field deployment.
- Manual Override: Integrated hex key override allows for manual positioning during system commissioning.
- What is the maximum damper area this unit can handle? While it depends on the damper seal type and static pressure, this 160 lb-in actuator typically handles dampers up to 40 sq. ft.
- Can I mount this in any orientation? Yes, the GCA series supports multi-position mounting, though vertical installation is recommended for optimal NEMA 2 protection.
- Does the GCA121.1P include auxiliary switches? No, this specific model (121.1P) is the base 2-position unit; for dual auxiliary switches, the GCA126.1P is the appropriate alternative.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












