SQM50.364R1G4R Siemens Damper Motor

Overview

The Siemens SQM50.364R1G4R is a high-precision reversing actuator designed for the accurate positioning of flow control valves, butterfly valves, and air or gas dampers in combustion systems. Engineered for industrial and commercial burner applications, this robust damper motor ensures reliable fuel-air ratio control and modulation. It is part of the Siemens SQM5 series, known for its modular design and exceptional repeatability, making it a critical component for optimizing burner performance and safety.

Features

• High-precision rotary motion for advanced modulation and control accuracy
• Equipped with two limit switches and up to four internal, easily adjustable auxiliary switches
• Integrated auto/manual selector switch and manual forward/reverse toggle switch for simplified commissioning
• Drive shaft and cam drum disengagement clutches for quick manual alignment
• Externally visible position indicator for easy status monitoring
• Rugged construction designed for reliable operation in demanding industrial environments

Specifications

• Model: SQM50.364R1G4R
• Torque: 140 in-lb (16 Nm)
• Running Time: 12 seconds for 90 degree rotation (at 60 Hz)
• Operating Voltage: 110 V AC
• Control Signal: 4-20 mA input
• Shaft Type: 3/8 inch square shaft
• Rotation: Counterclockwise (CCW)
• Angular Rotation: Up to 135 degrees
• Protection Rating: UL, CSA, and CE approved versions available
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)

Applications

• Precise modulation of air and gas dampers in industrial burners
• Positioning of flow control and butterfly valves in heating systems
• Fuel-air ratio regulation for boilers and process heating equipment
• Integration with Siemens burner management systems such as the LMV5 series
• Dual fuel applications using auxiliary switches for separate high and low fire positions