Description
Siemens GBB166.1U Non-Spring-Return Modulating Damper Actuator
The Siemens GBB166.1U is a non-spring-return (NSR) modulating damper actuator engineered for precise airflow control in commercial HVAC and building automation systems. Powered by 24 VAC and accepting a 0–10 VDC modulating control signal, this actuator delivers smooth, proportional positioning to meet the demands of variable air volume (VAV) systems, air handling units, and other damper control applications.
Built to Siemens’ exacting standards for building technology, the GBB166.1U includes an integrated auxiliary switch, enabling end-of-travel feedback or interlock functions with other system components — a critical feature for reliable sequence-of-operations in modern BAS environments.
Key Features
- Non-spring-return (NSR) design for energy-efficient positioning
- 24 VAC power supply for compatibility with standard HVAC control circuits
- 0–10 VDC modulating control signal for precise proportional damper positioning
- Integrated auxiliary switch (AUX SW) for end-of-travel feedback and system interlocks
- Modulating (MOD) operation for variable airflow control
- Designed for use in commercial building automation and HVAC damper applications
- Siemens Building Technology quality construction for long service life
Typical Applications
- Variable air volume (VAV) systems
- Air handling units (AHUs)
- Economizer and outside air damper control
- Commercial building automation systems (BAS)
- Exhaust and return air damper control
Specifications
- SKU: GBB166.1U
- Brand: Siemens Building Technology
- Actuator Type: Non-Spring-Return (NSR)
- Supply Voltage: 24 VAC
- Control Signal: 0–10 VDC (Modulating)
- Auxiliary Switch: Included
Reviews
There are no reviews yet.