SQM50.264A1G4 Siemens Damper Motor

Overview

The Siemens SQM50.264A1G4 is a high-precision reversing damper motor designed for the positioning of air and gas dampers, flow control valves, and butterfly valves. As part of the robust SQM5 series, this actuator is engineered for industrial and commercial burner applications that require a high degree of modulating accuracy and repeatability. It features a reversible motor that allows for flexible rotation and is built to integrate seamlessly with various burner control systems.

Features

• Reversing actuator with field-reversible clockwise or counterclockwise operation
• Integrated auto/manual switch and manual forward/reverse toggle for easy adjustments
• Equipped with two limit switches and four internal auxiliary switches for precise control
• Features a drive shaft and cam drum disengagement clutch for manual positioning
• Low hysteresis gearing and an externally visible position indicator for high rotational resolution
• Durable housing made of die-cast aluminum with impact-proof and heat-resistant plastic covers

Specifications

• Model: SQM50.264A1G4
• Operating Voltage: 110V – 120V AC (50/60 Hz)
• Torque: 90 lb-in (10 Nm)
• Running Time: 8 seconds for 90 degree rotation (at 60 Hz)
• Control Input Signal: 4-20 mA (via AGA56.41A internal circuit board)
• Rotation Angle: 90 to 135 degrees
• Shaft Type: AGA58.4 (3/8 inch square, dual-ended)
• Protection Rating: Designed for industrial environments with IP54 or NEMA 4 compatibility when properly installed

Applications

• Supervision and control of combustion air volume in medium to large capacity burners
• Positioning of gas flow and oil volume control valves in HVAC systems
• Automation of air dampers in industrial furnace and boiler applications
• Precise control of flow in butterfly valves and other rotary motion equipment
• Integration with Siemens burner controls or third-party PLC systems requiring 4-20 mA modulation