Siemens 24V ac Modulating control Damper Actuator, 25 Nm

RS Stock No.:: 643-448
Mfr. Part No.:: GBB161.1E / S55499-D816
Manufacturer:: Siemens

Siemens 24V ac Modulating control Damper Actuator, 25 Nm

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Subtotal (1 unit)*

HK$3,423.90

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Ready to ship from 09 November 2026

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Units	Per unit
1 +	HK$3,423.90

*price indicative

RS Stock No.:: 643-448
Mfr. Part No.:: GBB161.1E / S55499-D816
Manufacturer:: Siemens

Specifications

Product overview and Technical data sheets

Legislation and Compliance

Product Details

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Select all	Attribute	Value
	Brand	Siemens
	Product Type	Damper Actuator
	Maximum Damper Area	4m²
	Switch Included	Yes
	Power Consumption	8W
	For Use With	Precision Control In HVAC Systems
	Control Type	Modulating control
	Supply Voltage	24V ac
	Motor Torque	25Nm
	Noise Level	45dBA
	IP Rating	IP54
	Angle of Rotation	90°
	Minimum Operating Temperature	-32°C
	Running Time	150s
	Maximum Damper Spindle Size	25.6mm
	Maximum Operating Temperature	55°C
	Minimum Damper Spindle Size	8mm
	Standards/Approvals	IEC 721-3-3, IEC 721-3-2
	Series	GBB..1

	Select all
	Brand Siemens
	Product Type Damper Actuator
	Maximum Damper Area 4m²
	Switch Included Yes
	Power Consumption 8W
	For Use With Precision Control In HVAC Systems
	Control Type Modulating control
	Supply Voltage 24V ac
	Motor Torque 25Nm
	Noise Level 45dBA
	IP Rating IP54
	Angle of Rotation 90°
	Minimum Operating Temperature -32°C
	Running Time 150s
	Maximum Damper Spindle Size 25.6mm
	Maximum Operating Temperature 55°C
	Minimum Damper Spindle Size 8mm
	Standards/Approvals IEC 721-3-3, IEC 721-3-2
	Series GBB..1

Datasheet - GBB161.1E / S55499-D816

RoHS Status: Exempt

COO (Country of Origin):: CH

Siemens GBB..1 Series Damper Actuator, 8W Power Consumption, 24V AC Supply Voltage - BPZ:GBB161.1E

The Siemens GBB..1 damper actuator is designed for precision control in HVAC systems, accommodating damper areas up to 4m². It operates efficiently with AC 24V power supply and supports both three-position and modulating controls. The actuator's rugged build and Compact design ensure reliable performance in demanding environments and tight spaces. Features like adjustable span and offset settings enhance operational accuracy and energy efficiency.

Features & Benefits

• High torque of 25Nm for effective damper operation

• Energy-efficient design with a power consumption of 8W

• Pre-wired with 0.9m connection cables for simple installation

• Adjustable span from 0° to 90° for flexible control

• Position feedback potentiometer for accurate positioning

Applications

• Controls outdoor Air dampers in HVAC systems

• Suitable for installations requiring tandem-mounted actuators

• Ideal for automated damper control in various environments

Can it operate with modulating controllers?

Yes, it is compatible with modulating controllers using DC 0 to 10V signals.

Will it enhance the lifespan of HVAC systems?

Yes, the actuator's design helps improve system longevity by ensuring precise positioning.

Can it handle high torque applications?

Yes, it provides a nominal torque of 25Nm for effective control.

Can the actuator be adjusted for different position settings?

Yes, it features adjustable span and offset functions.