SQM56.560R1G4 Siemens Damper Motor

Overview

The Siemens SQM56.560R1G4 is a high-torque reversing actuator designed to provide precise rotary motion for air and gas dampers, as well as flow control and butterfly valves. Engineered for industrial and commercial burner applications of medium to large capacity, this electromotive actuator is a critical component for load-dependent control of combustion air, oil, and gas volumes. It is known for its exceptional modulating accuracy, repeatability, and versatility, supporting various control input signals and flexible mounting configurations.

Features

• High modulating accuracy with 250 repositions through 90 degrees of travel
• Integrated auto/manual selector switch and manual forward/reverse toggle for easy field adjustments
• Features two limit switches and four internal auxiliary switches (6 total) for expanded control logic
• Includes drive shaft and cam drum disengagement clutches for manual positioning
• Field-reversible rotation direction (clockwise or counterclockwise)
• Externally visible position indicator for at-a-glance monitoring
• Low hysteresis gearing for both the actuator and potentiometer to ensure stable signal feedback
• Modular design allows for exchangeable circuit boards and drive shafts to meet specific installation needs

Specifications

• Model: SQM56.560R1G4
• Operating Voltage: 110-120 VAC (50/60 Hz)
• Torque: 310 lb-in (40 Nm)
• Running Time: 37 seconds for 90-degree rotation (at 60 Hz); 45 seconds (at 50 Hz)
• Control Signal: 4-20 mA modulating input
• Number of Switches: 6 (2 limit, 4 auxiliary)
• Shaft Type: Standard version, no drive shaft included (must be ordered separately)
• Approvals: UL recognized, CSA certified, and CE approved
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)
• Weight: Approximately 8.0 lbs (3.6 kg)

Applications

• Load-dependent control of combustion air, gas, and oil volumes in industrial burner systems
• Positioning of air and gas dampers in HVAC and boiler installations
• Actuation of flow control valves and butterfly valves requiring high torque
• Suitable for medium to large capacity package burners and line burners
• Used in conjunction with 3-position or modulating controllers for precise fuel-to-air ratio control