SQM56.664R2G3 Siemens Damper Motor

Overview

The Siemens SQM56.664R2G3 is a high-precision electromotive reversing actuator designed to position air and gas dampers, flow control valves, and butterfly valves in medium to large capacity oil and gas burners. Engineered for industrial and commercial burner applications, this actuator provides reliable rotary motion and is particularly well-suited for systems requiring exceptional modulating accuracy and repeatability. Its robust design allows for flexible mounting in any position and includes exchangeable circuit boards to accommodate various control requirements.

Features

• High-precision rotary motion with limited drive shaft play (0.3 degrees)
• Integrated electronic module for 4-20 mA input signal control
• Internal and external position indication for easy monitoring
• Six easily adjustable internal switches for limit and auxiliary functions
• Auto/manual selector switch for simplified setup and maintenance
• Reversible operation with clockwise or counterclockwise capability
• Maintenance-free gearwheels and bearings for long-term reliability
• Durable housing with flexible mounting options

Specifications

• Torque: 400 lb-in (45 Nm)
• Running Time: 60 seconds (50 Hz) or 50 seconds (60 Hz) for 90 degree rotation
• Operating Voltage: 220 V AC
• Control Signal: 4-20 mA input
• Shaft Type: 3/8 inch square, dual-ended
• Potentiometer: 90 degree range
• Protection Rating: Designed for industrial environments
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)

Applications

• Load-dependent control of combustion air volume in industrial burners
• Precise positioning of gas flow and oil volume control valves
• Driving air and gas dampers in medium to large heating systems
• HVAC systems requiring high modulating accuracy and repeatability
• Integration into burner control sequences via LMV5 or similar systems