SQM50.460R1A Siemens Damper Motor

Overview

The Siemens SQM50.460R1A is a high-precision reversing actuator designed for the accurate positioning of air dampers, flow control valves, and butterfly valves in medium to large capacity oil and gas burners. Engineered for industrial and commercial applications, this robust motor ensures reliable and repeatable movement for load-dependent control of combustion air, gas flow, and oil volume. Its modular design allows for extensive customization through exchangeable circuit boards and shafts, making it a versatile component for complex burner systems.

Features

• High degree of modulating accuracy and repeatability for precise burner control
• Self-checking and electronic self-supervision capabilities ensure operational safety
• Six internal, easily adjustable auxiliary switches for flexible position signaling
• Integrated auto/manual selector switch and forward/reverse toggle for easy commissioning
• Disengagement clutches for the drive shaft and cam drum to allow quick manual alignment
• Durable construction featuring die-cast aluminum housing and impact-resistant plastic covers
• Externally visible position indicator for at-a-glance monitoring of shaft status

Specifications

• Torque: 140 lb-in (15 Nm)
• Running Time: 25 seconds for 90 degrees (at 60 Hz)
• Operating Voltage: 110-120 VAC
• Power Consumption: 20 VA
• Angle of Rotation: Adjustable up to 160 degrees
• Environmental Rating: NEMA 4 or IP54 depending on configuration
• Weight: Approximately 8.0 lbs (3.6 kg)
• Mounting: Base or face mounting in any position

Applications

• Supervision and regulation of air and gas dampers in industrial burner systems
• Positioning of flow control and butterfly valves for gas and oil volume management
• Integration with Siemens burner controls (e.g., LMV5 series) for automated load control
• Constant or variable air volume (VAV) installations in HVAC systems
• Multi-fuel burner applications requiring separate ignition and fire positions for different fuels