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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