SQM50.264R1A Siemens Damper Motor

Overview

The Siemens SQM50.264R1A is a high-precision reversing actuator designed for the accurate positioning of dampers, butterfly valves, and flow control valves. As part of the SQM5 series, this electromotive motor is engineered for both industrial and commercial applications that require a high degree of modulating accuracy and repeatability. It features a robust design capable of operating in any mounting position and provides reliable performance for burner control and HVAC systems.

Features

• Internal and external position indication for easy monitoring
• Integrated auto/manual switch and manual forward/reverse toggle switch for simplified commissioning
• Disengagement clutches for the drive shaft and cam drum to allow for quick manual alignment
• Low hysteresis gearing for precise rotational resolution
• Field-reversible rotation (standard counterclockwise when facing the gear end)
• Includes two limit switches and up to four internal auxiliary switches for complex control sequences

Specifications

• Model: SQM50.264R1A
• Operating Voltage: 110-120 Vac (50/60 Hz)
• Torque: 90 in-lbs (10 Nm)
• Running Time: 8 seconds for 90 degree rotation (at 60 Hz)
• Control Input: Position proportional (via AGA56.1A97 circuit board)
• Drive Shaft: 3/8 inch square, dual-ended
• Rotational Direction: Counterclockwise (CCW)
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)
• Protection Rating: IP54 (standard)

Applications

• Positioning of air and gas dampers in industrial and commercial burners
• Control of flow control valves and butterfly valves in HVAC systems
• Modulating control for process heating and industrial burner applications
• Suitable for systems requiring precise air-to-fuel ratio control and high turndown ratios
• Integration with Siemens burner controls such as the LMV5 or LME series