Siemens SAS81.03U Electronic valve actuator 24 VAC (7/32 in. stroke)

Product Description

Siemens SAS81.03U is an electronic valve actuator that provides a 7/32 in. stroke, non-spring-return operation and three-position floating control for HVAC valve applications. It operates on 24 VAC with a power consumption of 2.5 VA and is intended for valve positioning in terminal units and other HVAC systems. The actuator supports floating control input and is rated for operation from 23 F to 131 F (-5 C to 55 C).

• 7/32 in. stroke, non-spring-return design for direct valve actuation
• 24 VAC input with 2.5 VA power consumption; floating three-position control
• Intended for HVAC valve control applications; operating range 23 F to 131 F (-5 C to 55 C)

Product Highlights

Non-spring-return 24 VAC electronic valve actuator with 7/32 in. stroke and three-position floating control.

Product Information

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: SAS81.03U
• Country of Origin: Swaziland

Technical Specifications

• Brand: Siemens
• Manufacturer Part Number: SAS81.03U
• Product Type: Electronic valve actuator
• Stroke: 7/32 in. (≈5.56 mm)
• Return Type: Non-spring return
• Input Voltage: 24 VAC
• Power Consumption: 2.5 VA
• Control Type: Floating (three-position)
• Positions: Three-position
• Operating Temperature: 23 F to 131 F (-5 C to 55 C)
• Run Time: 30 seconds
• Compatible Valve Types: Siemens 2-port and 3-port valves (typical for small HVAC terminal valves)
• Applications: HVAC valve control, VAV systems, fan coil units, air handling units
• Mounting: Direct mounting on compatible valves