The Siemens SAS61.03 is an electromotoric actuator designed for controlling Siemens 2-port and 3-port valves in heating, ventilation, and air conditioning (HVAC) systems. It operates on AC 24 V / DC 24 V with a modulating control signal of DC 0…10 V, DC 4…20 mA, or 0…1000 Ω. The actuator provides a positioning force of 400 N and a stroke of 5.5 mm, making it ideal for precise flow control in HVAC applications. It is compatible with Siemens VVG44, VXG44, and VVG549 valve series and can be used for control and shutoff functions in both heating and ventilation plants. This actuator also supports Modbus RTU communication for advanced system integration.

Key Features:

• Operating voltage: AC 24 V / DC 24 V
• Control signal: DC 0…10 V, DC 4…20 mA, or 0…1000 Ω
• Positioning force: 400 N
• Stroke: 5.5 mm
• Compatible with Siemens VVG44, VXG44, and VVG549 valves
• Modbus RTU communication available for enhanced system control

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