Description
Siemens S55180-A151 24VAC 0-10VDC Non-Spring Return Actuator
The Siemens S55180-A151 is a high-performance non-spring return (NSR) damper actuator engineered for precise, reliable control in commercial and industrial HVAC applications. Powered by 24VAC and accepting a 0–10VDC modulating control signal, this actuator delivers accurate positioning for air handling units, VAV systems, and other damper-driven equipment. With a robust 255 in-lb torque output, it handles demanding damper loads with ease, making it a trusted choice for building automation and energy management systems.
Key Features
- Non-spring return (NSR) operation — damper holds last position on power loss
- 24VAC supply voltage for compatibility with standard HVAC control systems
- 0–10VDC modulating control signal for smooth, proportional damper positioning
- 255 in-lb torque output for reliable actuation of large or high-resistance dampers
- Designed for commercial and industrial building automation applications
- Siemens Building Technology quality — engineered for long service life and consistent performance
Specifications
- SKU: S55180-A151
- Brand: Siemens Building Technology
- Supply Voltage: 24VAC
- Control Signal: 0–10VDC
- Torque Output: 255 in-lb
- Actuator Type: Non-Spring Return (NSR)
Application
Ideal for use in variable air volume (VAV) systems, air handling units (AHUs), economizers, and other commercial HVAC damper assemblies requiring modulating control. The 0–10VDC input integrates seamlessly with most building automation system (BAS) controllers and direct digital control (DDC) systems.
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