Description
The Siemens SAS61.03U is a 24-volt non-spring return (NSR) direct-coupled damper actuator engineered for precise, proportional control in commercial and industrial HVAC applications. Featuring a 0–10 VDC analog control signal input and a 30-second nominal stroke time, this actuator delivers smooth, responsive damper positioning to support accurate airflow regulation and building automation system integration.
Key Features
- 24V AC/DC operating voltage for broad system compatibility
- Non-spring return (NSR) design — damper holds last position on power loss
- 0–10 VDC proportional control signal for precise modulating operation
- 30-second nominal stroke time for smooth, controlled damper movement
- Direct-coupled mounting — no crank arm or linkage required
- Compact, rugged housing suitable for commercial HVAC environments
- Designed for seamless integration with Siemens Building Technology BAS/BMS platforms
Typical Applications
- Variable air volume (VAV) systems
- Air handling units (AHUs)
- Mixing, exhaust, and outside air dampers
- Building automation and energy management systems
Product Specifications
- SKU: SAS61.03U
- Brand: Siemens Building Technology
- Supply Voltage: 24V AC/DC
- Control Signal: 0–10 VDC (proportional)
- Actuator Type: Non-Spring Return (NSR)
- Stroke Time: 30 seconds (nominal)
- Mounting: Direct-coupled
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