Siemens SQM41.241R11SC

The Siemens SQM41.241R11SC is a high-precision modulating actuator designed for damper and valve control in industrial burner and combustion systems. With a clockwise (CW) rotation, 4-20mA or 135-ohm control input, and 90 in-lb torque, this actuator ensures precise and reliable modulation of air and fuel flow for optimal combustion efficiency.

Technical Specifications

  • Manufacturer: Siemens
  • Model: SQM41.241R11SC
  • Actuator Type: Modulating Reversing Actuator
  • Control Input: 4-20mA or 135-ohm potentiometer control
  • Torque Output: 90 in-lb (10 Nm)
  • Rotation Direction: Clockwise (CW)
  • Shaft Size: 10mm Keyed Shaft
  • Travel Time: 30 seconds for 90° stroke
  • Power Supply: 110V AC, 50/60 Hz
  • Feedback Signal: Potentiometer feedback for remote monitoring
  • Operating Temperature Range: Designed for industrial combustion environments
  • Enclosure Rating: Rugged construction for demanding applications
  • Certifications: UL and CSA Approved

Key Features

  • Precision modulating actuator for industrial burner and boiler control
  • Clockwise (CW) rotation for specific system configurations
  • Supports 4-20mA or 135-ohm control signals for flexible integration
  • 90 in-lb torque output for efficient operation of dampers and valves
  • 30-second travel time for smooth and precise modulation
  • 10mm keyed shaft for secure mounting and positioning
  • Built-in position feedback for real-time monitoring and diagnostics
  • UL and CSA approved for industrial safety compliance

Compatible Siemens Components & Systems

  • Siemens LMV3 and LMV5 Burner Management Systems
  • Siemens VGD and VGF Series Gas Valves
  • Siemens Burner Control and Air-Fuel Ratio Systems

Industry Applications

  • Boiler and burner air/fuel ratio control
  • Industrial combustion and power generation
  • HVAC systems requiring precise damper and valve modulation
  • Petrochemical and process heating industries
  • Food processing and waste incineration burner control

Installation & Operational Notes

  • Verify compatibility with burner management systems before installation
  • Securely mount actuator to damper or valve shaft for stable operation
  • Connect to appropriate control system using 4-20mA or 135-ohm input signals
  • Use potentiometer feedback for precise monitoring and system diagnostics
  • Follow Siemens installation and maintenance guidelines for best performance

 

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