Description
The Siemens GLB166.1P is a high-performance, plenum-rated damper actuator engineered for precise modulating control in commercial HVAC and building automation systems. Designed to meet the demanding requirements of modern air-handling applications, this actuator delivers reliable, repeatable performance in plenum environments where stringent safety and material standards apply.
Key Features
- 24V AC/DC supply voltage for broad compatibility with commercial control systems
- Non-Spring Return (NSR) operation — holds last position on power loss for stable system behavior
- 88 lb-in (10 Nm) torque output — suitable for medium to large damper assemblies
- 0–10 Vdc modulating control signal for smooth, proportional damper positioning
- Plenum-rated construction meets code requirements for installation in air-handling plenums
- Compact, robust housing designed for long service life in commercial applications
Application
The GLB166.1P is ideal for use in variable air volume (VAV) systems, air handling units (AHUs), economizers, and other HVAC damper control applications where precise modulating control and plenum-rated installation are required. Its 0–10 Vdc input integrates seamlessly with building automation systems (BAS) and direct digital control (DDC) controllers.
Product Specifications
- Brand: Siemens Building Technology
- Model / SKU: GLB166.1P
- Supply Voltage: 24V AC/DC
- Control Signal: 0–10 Vdc (modulating)
- Torque: 88 lb-in
- Actuator Type: Non-Spring Return (NSR)
- Rating: Plenum-rated
Why Choose Siemens?
Siemens Building Technology is a globally recognized leader in HVAC controls and building automation. Their actuator line is engineered for precision, durability, and ease of installation — making them a trusted choice for mechanical contractors, controls technicians, and building engineers worldwide.







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