SQM50.460R1G3R Siemens Damper Motor

Overview

The Siemens SQM50.460R1G3R is a high-precision reversing actuator designed for the accurate positioning of air dampers, flow control valves, and butterfly valves in industrial and commercial burner applications. Part of the SQM5 series, this damper motor is engineered for systems requiring a high degree of modulating accuracy and repeatability. It features a robust design with die-cast aluminum housing and impact-proof plastic covers, ensuring long-term durability in demanding HVAC and combustion environments.

Features

• Reversing actuator with field-reversible clockwise or counterclockwise operation
• Integrated auto/manual selector switch and manual forward/reverse toggle switch
• Equipped with two limit switches and four internal auxiliary switches for versatile control
• Features drive shaft and cam drum disengagement clutches for easy adjustment
• Self-checking mechanism suitable for integration into high-capacity oil and gas burners
• Modulating accuracy designed for load-dependent control of gas, oil, and combustion air volume

Specifications

• Model: SQM50.460R1G3R
• Operating Voltage: 110V – 120V AC (50/60 Hz)
• Torque: 140 lb-in (holding torque)
• Running Time: 25 seconds for 90 degrees (at 60 Hz)
• Input Signal: 4 to 20 mA
• Potentiometer: 1000 Ohm, 90-degree rotation
• Shaft Type: No shaft included (compatible with various field-exchangeable shafts)
• Protection Rating: UL recognized, CSA certified, and CE approved
• Operating Temperature: -5 F to 140 F

Applications

• Positioning of air dampers in medium to large capacity oil and gas burners
• Control of flow control valves and butterfly valves in HVAC systems
• Load-dependent control of combustion air and fuel volume in boiler systems
• Industrial applications requiring precise rotary motion and electronic linearization