SQM53.484R2G3 Siemens Damper Motor

Overview

The Siemens SQM53.484R2G3 is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves. Part of the robust SQM5 series, this electromotive actuator is engineered for industrial and commercial burner applications where reliable rotary motion and modulating accuracy are essential. It features a reversible synchronous motor and is particularly well-suited for systems requiring repeatable performance in combustion control.

Features

• Internal and external position indication for easy monitoring
• Drive shaft and camshaft can be disengaged separately for manual adjustment and maintenance
• Integrated auto/manual switch and manual control forward/reverse toggle switch
• Low hysteresis gear train with double-offset drive for high rotational resolution
• Equipped with up to six internal, easily adjustable limit and auxiliary switches
• Field-exchangeable circuit boards and potentiometers for versatile control options
• Durable die-cast aluminum housing with impact-proof, heat-resistant plastic covers

Specifications

• Torque: 200 in-lbs (22.5 Nm)
• Running Time: 25 seconds for 90 degree rotation (at 60 Hz) / 30 seconds (at 50 Hz)
• Operating Voltage: 220-240 VAC, 50/60 Hz
• Control Input Signal: 4-20 mA
• Rotational Direction: Counterclockwise (CCW) standard
• Shaft Type: 3/8 inch square shaft
• Protection Rating: IP54
• Angular Rotation: Adjustable from 0 to 160 degrees

Applications

• Load-dependent control of gas flow, oil volume, and combustion air volume in burner systems
• Positioning of dampers and valves in industrial process heating
• Use with 3-position or modulating controllers in HVAC and boiler applications
• Integration with Siemens burner controls such as the LMV5 series
• Suitable for any rotary motion application requiring high modulating accuracy and repeatability