SQM56.667R1A3R Siemens Damper Motor

Overview

The Siemens SQM56.667R1A3R is a high-torque reversing rotary actuator designed for the precise positioning of air and gas dampers, flow control valves, and butterfly valves in industrial and commercial burner applications. Part of the advanced SQM5 series, this actuator is engineered for heavy-duty loads requiring a high degree of modulating accuracy and repeatability. It features a robust design with die-cast aluminum housing and is specifically configured for clockwise (CW) rotation with potentiometer feedback.

Features

• Ultra-high torque capacity for the largest industrial dampers and valves
• Reversing capability for flexible control and precise positioning
• Integrated auto/manual selector switch and manual forward/reverse toggle switch for simplified commissioning
• Up to six easily adjustable internal switches for limit and auxiliary functions
• Low hysteresis drive mechanism with double-offset drive and potentiometer gearing for superior rotational resolution
• Externally visible shaft position indicator and internal scales for easy monitoring and setup
• Drive shaft and cam drum disengagement clutches for quick manual alignment

Specifications

• Torque: 400 lb-in (45 Nm)
• Running Time: 50 seconds for 90 degree rotation (at 60 Hz)
• Operating Voltage: 110-120 Vac
• Rotation: Clockwise (CW) factory configuration
• Shaft: 14 mm round single-ended shaft
• Control Signal: Position proportional
• Feedback: 90 degree potentiometer
• Protection Rating: Designed for industrial environments with impact-proof and heat-resistant covers
• Approvals: UL and CSA certified versions available

Applications

• Load-dependent control of gas, oil, and combustion air in medium to large capacity burners
• Positioning of flow control valves, butterfly valves, and heavy-duty dampers
• Industrial process heating and high-turndown burner systems
• Dual fuel applications requiring separate ignition and fire positions
• Suitable for any rotary motion application requiring high torque and precise modulating control