SQM50.464R1A Siemens Damper Motor

Overview

The Siemens SQM50.464R1A is a high-precision reversing actuator designed for the accurate positioning of air dampers, flow control valves, butterfly valves, and other components requiring rotary motion. Part of the robust SQM5 series, this electromotive actuator is engineered for industrial and commercial burner applications that demand a high degree of modulating accuracy and repeatability. Its modular design allows for extensive customization through exchangeable circuit boards and potentiometers, ensuring compatibility with various control systems and mounting requirements.

Features

• Reversing motor with high torque output for reliable control of heavy dampers and valves
• Modular architecture supports field-exchangeable circuit boards for varied input and output signals
• Integrated auto/manual selector and manual forward/reverse toggle switches for simplified commissioning and troubleshooting
• Separately disengegable drive shaft and camshaft for quick manual alignment
• Externally visible position indicator for at-a-glance monitoring of shaft status
• Durable construction suitable for any mounting position, providing installation flexibility
• Low hysteresis gearing ensures precise positioning and high rotational resolution

Specifications

• Model: SQM50.464R1A
• Operating Voltage: 110 – 120 VAC (50/60 Hz)
• Torque: 140 lb-in (16 Nm)
• Running Time: 25 seconds for 90 degree rotation (at 60 Hz)
• Control Signal: Position proportional
• Shaft Type: 3/8 inch square dual-ended shaft
• Rotation Direction: Counter-clockwise (CCW) standard, field reversible
• Protection Rating: Designed to meet industrial standards (UL and CSA versions available)
• Operating Temperature: -20 C to +60 C

Applications

• Precise regulation of air and gas flow in industrial and commercial burner systems
• Positioning of flow control and butterfly valves in process heating environments
• Modulation of air dampers for optimal combustion efficiency in boilers and furnaces
• Rotary motion control in HVAC and boiler applications requiring high accuracy and repeatability
• Dual fuel applications using auxiliary switches to set specific ignition and fire positions for different fuels