SQM50.464R1G3 Siemens Damper Motor

Overview

The Siemens SQM50.464R1G3 is a high-precision reversing actuator designed to provide reliable rotary motion for industrial and commercial burner applications. Engineered for accuracy and repeatability, this actuator is primarily used for the load-dependent control of gas flow, oil volume, and combustion air volume. It is capable of driving flow control valves, butterfly valves, and dampers, offering a robust solution for medium to large-capacity oil and gas burners.

Features

• Reversing motor with high modulating accuracy and rotational resolution
• Six internal auxiliary switches that are easily accessible and adjustable
• Integrated auto/manual selector switch and manual forward/reverse toggle for easy adjustments
• Externally visible shaft position indicator for simplified monitoring
• Low-hysteresis design with double-offset drive and potentiometer gearing
• Modular design allows for field-exchangeable circuit boards and shafts to increase installation flexibility
• Durable die-cast aluminum housing with impact-proof and heat-resistant plastic covers

Specifications

• Torque Output: 140 lb-in (16 Nm)
• Running Time: 25 seconds for 90-degree rotation at 60 Hz (30 seconds at 50 Hz)
• Control Signal Input: 4-20 mA DC
• Operating Voltage: 110-120 VAC (+10% / -15%)
• Rotation Direction: Counter-clockwise (CCW)
• Drive Shaft: 3/8 inch square dual-ended shaft
• Potentiometer: 1000 Ohm, 90-degree integrated potentiometer
• Protection Rating: NEMA 1, 2, 3, 3R, 4, 12, and 13 (IP54)
• Approvals: UL and CSA certified

Applications

• Positioning of air and gas dampers in industrial burner systems
• Control of gas and oil flow valves to manage combustion air volume
• Load-dependent control in medium to large-capacity oil and gas burners
• Integration with 3-position or modulating controllers for precise process automation
• Replacement for competitive actuators using a variety of available mounting brackets