SQM50.361R1G3R Siemens Damper Motor

Overview

The Siemens SQM50.361R1G3R is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves in industrial and commercial burner applications. This electromotive motor is engineered for heavy-duty performance, providing reliable rotary motion essential for maintaining optimal fuel-air ratios and combustion efficiency. The “R” suffix indicates that this specific model is factory-configured for clockwise (CW) rotation.

Features

• High-precision modulation with low hysteresis and excellent repeatability
• Integrated auto/manual selector switch for simplified setup and commissioning
• Externally visible shaft position indicator for easy monitoring
• Six internal, easily adjustable switches (two limit switches and four auxiliary switches)
• Internal electronic circuit board supports a 4-20 mA control input signal
• Rugged design suitable for mounting in any orientation
• Disengageable drive shaft and cam drum for manual adjustments

Specifications

• Model: SQM50.361R1G3R
• Torque: 140 in-lbs (16 Nm)
• Running Time: 12 seconds for 90 degree rotation (at 60 Hz)
• Operating Voltage: 110-120 VAC, 50/60 Hz
• Control Input: 4 to 20 mA
• Shaft Type: 10 mm round single-ended shaft
• Rotation Direction: Clockwise (CW)
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)
• Protection Rating: IP54 (NEMA 1, 2, 3, 3R, 3S, 5, 12, 13 compatible)
• Weight: Approximately 9.0 lbs (4.1 kg)

Applications

• Positioning of air and gas dampers in industrial burner systems
• Modulating control for boilers and commercial heating units
• Regulation of fuel-air ratios in combustion processes
• Control of flow valves and butterfly valves requiring rotary motion
• Integration with Siemens burner management systems such as the LMV series