SQM50.461R1G3R Siemens Damper Motor

Overview

The Siemens SQM50.461R1G3R is a high-precision reversing electromotive actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves. As part of the SQM5 series, this robust actuator is engineered for industrial and commercial burner applications that require consistent modulating accuracy and repeatability. It features a durable die-cast aluminum housing and impact-proof plastic covers, making it suitable for demanding environments.

Features

• Reversing operation with field-reversible clockwise or counterclockwise rotation
• Integrated auto/manual selector switch for easy adjustment and maintenance
• Externally visible shaft position indicator for quick status monitoring
• Low hysteresis gear train and double-offset drive for precise control
• Two limit switches and up to four adjustable internal auxiliary switches
• Disengagement clutches for the drive shaft and cam drum to facilitate manual adjustments
• Maintenance-free gearwheels and bearings for long-term reliability

Specifications

• Torque: 140 in-lb (approx. 15 Nm)
• Running Time: 25 seconds for 90 degree rotation (at 60 Hz)
• Operating Voltage: 110-120 VAC
• Input Signal: 4-20 mA
• Shaft Type: 10 mm round single-ended shaft
• Rotation Direction: Clockwise (CW)
• Protection Rating: IP54 (standard)
• Operating Temperature: -20 C to +60 C

Applications

• Positioning of air and gas dampers in industrial burner systems
• Control of flow control valves and butterfly valves in HVAC and boiler plants
• Use in modulating burner control systems requiring high repeatability
• Integration with burner controls like the Siemens LMV5 or LME series
• Suitable for any application requiring precise rotary motion in combustion systems