Siemens SFA11U

Siemens SFA11U is a 120V On/Off Zone Valve Actuator designed for reliable HVAC zoning and heating/cooling control. This compact actuator delivers crisp on/off operation to drive zone valves, helping optimize energy use in homes and light commercial settings.

With a robust, compact housing, the SFA11U is built for steady duty in busy HVAC zones. It provides fast response to thermostat signals, minimizing valve lag and improving overall system efficiency. The actuator is designed for straightforward wiring and dependable performance in both new installations and retrofits, reducing install time and service calls. Its durable construction helps withstand typical workshop or motor room conditions, while the On/Off command keeps control logic simple for technicians and building operators.

• 120V power supply for dependable actuation
• On/Off control for simple integration with thermostats
• Compact, durable design for easy retrofits
• Suitable for HVAC zoning with standard zone valves
• Quiet operation for residential and light commercial use