SQM50.367R1G3R Siemens Damper Motor

Overview

The Siemens SQM50.367R1G3R is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves in burner applications. Engineered for both industrial and commercial use, this electromotive motor provides reliable rotary motion and is particularly well-suited for systems requiring a high degree of modulating accuracy and repeatability. Its robust die-cast aluminum housing and impact-resistant plastic covers ensure durability in demanding HVAC and combustion environments.

Features

• High modulating accuracy with minimal backlash and drive shaft play limited to 0.3 degrees
• Integrated auto/manual selector switch and manual forward/reverse toggle for easy adjustment and commissioning
• Equipped with two limit switches and up to four internal auxiliary switches for flexible control configurations
• Maintenance-free gearwheels and bearings for long-term operational reliability
• Field-reversible rotational direction for clockwise (CW) or counter-clockwise (CCW) operation
• Disengagement clutches for separate manual adjustment of the drive shaft and camshaft
• Externally visible shaft position indicator for convenient monitoring

Specifications

• Model: SQM50.367R1G3R
• Operating Voltage: 110-120 VAC (50/60 Hz)
• Torque: 140 lb-in (approx. 15 Nm)
• Running Time: 12 seconds for 90-degree travel (at 60 Hz)
• Input Control Signal: 4-20 mA
• Potentiometer: 1000 Ohm, 90-degree rotation
• Shaft Type: 14 mm round, one-ended
• Rotational Direction: Clockwise (CW)
• Protection Rating: Designed for integration into systems requiring UL, CSA, or CE certifications

Applications

• Precise control of air and gas dampers in large burner systems
• Positioning of butterfly valves and flow control valves for fuel/air ratio management
• Industrial process heating and commercial HVAC boiler applications
• Systems requiring sophisticated modulating control and integration with burner controls like the Siemens LMV series