SQM50.464R1K3 Siemens Damper Motor

Overview

The Siemens SQM50.464R1K3 is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves. Part of the SQM5 series, this electromotive actuator is engineered for industrial and commercial burner applications that require a high degree of modulating accuracy and repeatability. It features a robust die-cast aluminum housing and a synchronous motor, providing reliable performance in demanding HVAC and combustion environments.

Features

• High-precision modulating accuracy and rotational resolution for precise flow control
• Self-reversing motor with adjustable internal switches for customized travel limits
• Integrated auto/manual selector switch and manual control forward/reverse toggle for easy adjustment and commissioning
• Externally visible shaft position indicator for quick status monitoring
• Low hysteresis design with double-offset drive and maintenance-free gearwheels
• Disengageable drive shaft and camshaft for manual adjustment
• Impact-proof and heat-resistant plastic covers for internal component protection

Specifications

• Torque: 140 lb-in (16 Nm)
• Running Time: 25 seconds for 90 degree travel (at 60 Hz)
• Operating Voltage: 110V – 120V AC (50/60 Hz)
• Control Input Signal: 0-10 Vdc (K-type electronic module)
• Rotation: Counter-clockwise (CCW) standard, field reversible
• Shaft Type: 3/8 inch square, dual-ended
• Auxiliary Switches: Up to 6 internal switches (2 limit, 4 auxiliary)
• Potentiometer: 90 degree range
• Enclosure Rating: NEMA 1 (IP54 compliant)
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)

Applications

• Positioning of air dampers in industrial burner systems
• Control of gas flow valves and butterfly valves for combustion regulation
• Large-scale HVAC air volume control and ventilation systems
• Integration with Siemens burner controls such as the LMV5 series
• Replacement for competitive actuators in existing burner and damper assemblies