Description
Overview
The Siemens S55155-A110 is a 24 VAC non-spring return (NSR) actuator engineered for precise, reliable positioning of HVAC dampers and valves in commercial building automation and control applications. Designed to Siemens Building Technology standards, this actuator delivers accurate modulating control via a 0–10 VDC input signal, making it an ideal choice for VAV systems, air handling units, and other applications requiring proportional airflow management.
Key Features
- 24 VAC operating voltage for compatibility with standard HVAC control systems
- 0–10 VDC modulating control signal for smooth, proportional positioning
- Non-spring return (NSR) design — holds last position on power loss
- Engineered for commercial building automation and HVAC control applications
- Siemens Building Technology quality construction for long service life
- Suitable for damper and valve actuator applications in air handling and VAV systems
Application
The S55155-A110 is well suited for use in commercial HVAC systems where precise, proportional control of dampers or valves is required. The non-spring return function retains the actuator’s last commanded position upon loss of power, making it appropriate for applications where a defined fail position is not required but position retention is preferred.
Specifications
- SKU: S55155-A110
- Brand: Siemens Building Technology
- Supply Voltage: 24 VAC
- Control Signal: 0–10 VDC
- Actuator Type: Non-Spring Return (NSR)
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