Description
The Siemens SAS81.33U is a commercial-grade electro/mechanical actuator engineered for precise valve and damper control in building automation and HVAC systems. Designed by Siemens Building Technology, this actuator combines reliable electro/mechanical operation with a 3-position control signal, making it well-suited for modulating and switching applications in commercial and industrial environments.
Key Features
- 3-position control for accurate open/close and intermediate positioning
- 30-second stroke runtime for smooth, controlled actuation
- Spring return (SR) fail-safe mechanism ensures the actuator returns to a defined safe position on power loss
- Electro/mechanical design for dependable long-term performance
- Engineered for compatibility with Siemens Building Technology control systems
- Compact and robust construction suitable for commercial HVAC applications
Application
The SAS81.33U is ideal for use in building automation systems (BAS) where fail-safe actuator performance is critical. The spring return function provides added safety and reliability in air handling units, VAV systems, and hydronic control applications. Its 3-position input allows integration with a wide range of building controllers and DDC systems.
Product Specifications
- Brand: Siemens Building Technology
- Model / SKU: SAS81.33U
- Actuator Type: Electro/Mechanical
- Control Type: 3-Position
- Stroke Runtime: 30 seconds
- Fail-Safe: Spring Return (SR)
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