SQM50.464R1H3 Siemens Damper Motor

Overview

The Siemens SQM50.464R1H3 is a high-precision reversing actuator designed for the accurate positioning of flow control valves, butterfly valves, and air dampers. Part of the SQM5 series, this motor is engineered for industrial and commercial burner applications that require a high degree of modulating accuracy and repeatability. It features a robust design with a 3/8 inch square shaft and is capable of providing reliable rotary motion to optimize fuel use and minimize emissions in combustion systems.

Features

• Internal adjustable switches allow for up to six positions, including two limit switches and four auxiliary switches
• Auto/manual selector switch and manual forward/reverse toggle switch facilitate easy adjustments and testing
• Externally visible shaft position indicator provides clear status monitoring
• Low hysteresis design with double-offset drive and potentiometer gearing ensures precise control
• Field-reversible rotation capability allows for clockwise or counter-clockwise operation
• Disengagement clutches for the drive shaft and cam drum enable manual positioning

Specifications

• Torque: 140 lb-in
• Running Time: 25 seconds for a 90 degree stroke (at 60 Hz)
• Operating Voltage: 110-120 VAC
• Input Signal: 0 to 135 Ohm potentiometer feedback
• Rotation: Counter-clockwise (CCW)
• Shaft Type: 3/8 inch square dual-ended shaft
• Protection Rating: Designed for industrial environments with UL and CSA approval

Applications

• Positioning of air and gas dampers in industrial burner systems
• Control of flow control valves and butterfly valves
• Use in applications requiring precise modulation for HVAC and boiler systems
• Integration with Siemens burner controls to manage combustion parameters