SQM56.660R1 Siemens Damper Motor

Overview

The Siemens SQM56.660R1 is a high-precision reversing actuator designed for the accurate positioning of air dampers, gas dampers, and flow control valves in medium to large capacity oil and gas burners. As a base model in the SQM5 series, this 110V electromotive actuator is engineered for industrial and commercial applications requiring reliable rotary motion and high modulating accuracy. It features a modular design that allows for field-exchangeable components to suit specific burner control requirements.

Features

• Reversible and locking-proof synchronous motor ensures precise control
• Internal and external position indication for easy monitoring
• Drive shaft and camshaft can be disengaged separately for manual alignment
• Six easily accessible and adjustable internal switches (2 limit and 4 auxiliary)
• Auto/manual switch and manual control forward/reverse toggle for commissioning
• Maintenance-free gearwheels and bearings for long-term service life
• Die-cast aluminum housing with impact-proof, heat-resistant plastic covers

Specifications

• Model: SQM56.660R1
• Operating Voltage: 110-120 Vac (50/60 Hz)
• Torque: 400 in-lbs (45 Nm)
• Running Time: 50 seconds for 90 degrees (at 60 Hz)
• Angular Rotation: Adjustable up to 160 degrees
• Protection Rating: IP54
• Configuration: Base model (No shaft, No control board, No potentiometer included)
• Approvals: UL recognized, CSA certified, and CE approved

Applications

• Load-dependent control of gas flow, oil volume, and combustion air in burner systems
• Positioning of flow control valves, butterfly valves, and dampers
• Used in conjunction with 3-position or modulating controllers (e.g., 4 to 20 mA)
• Suitable for industrial process heating and commercial burner applications requiring high turndown and repeatability