SQM50.467R1G3 Siemens Damper Motor

Overview

The Siemens SQM50.467R1G3 is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves. As part of the SQM5 series, this damper motor is engineered for industrial and commercial burner applications that require a high degree of modulating accuracy and repeatability. It features a synchronous motor that can be manually disengaged from the gear train for quick alignment during commissioning, providing flexibility and ease of use in complex HVAC and combustion systems.

Features

• High-precision modulating accuracy and rotational resolution with low hysteresis
• Auto/manual selector switch and manual forward/reverse toggle switch for direct control
• Six easily accessible internal switches, including two limit and four auxiliary switches
• Externally visible shaft position indicator for real-time monitoring
• Field-reversible rotation, currently configured for counterclockwise (CCW) operation
• Disengagement clutches for the drive shaft and cam drum to simplify manual alignment
• Durable die-cast aluminum housing with impact-proof and heat-resistant plastic covers

Specifications

• Model: SQM50.467R1G3
• Torque: 140 in-lbs (16 Nm)
• Running Time: 25 seconds for 90-degree rotation (at 60 Hz)
• Operating Voltage: 110 V AC / 120 V AC
• Control Input Signal: 4-20 mA
• Shaft Type: 14 mm round, single-ended shaft
• Rotation Direction: Counterclockwise (CCW) when facing the drive shaft
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)
• Protection Rating: IP54 (standard for the series)
• Weight: Approximately 12 lbs

Applications

• Load-dependent control of gas flow, oil volume, and combustion air volume in burner systems
• Positioning of air and gas dampers in medium to large capacity industrial burners
• Operation of flow control valves and butterfly valves in process heating applications
• Used in conjunction with modulating controllers or directly by burner controls like the Siemens LMV5 series
• Suitable for dual-fuel applications where auxiliary switches define specific ignition and fire positions