Siemens Combustion SQM33.550A9 Actuator
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Siemens Combustion SQM33.550A9 Actuator

Siemens Combustion SQM33.550A9 Actuator

The Siemens SQM33.550A9 Actuator is a high-precision, electromotoric stepper motor designed for the load-dependent control of gas dampers, air dampers, and oil control valves in industrial burner applications. Specifically engineered for integration with Siemens LMV3 (including LMV27 and LMV37) linkageless burner management systems, this reversing actuator provides the accurate parallel positioning required for optimized fuel-air ratio management. It delivers a rated output torque of 3 Nm (approximately 27 in-lb) and features a self-holding torque of 2.6 Nm when power is removed, ensuring the damper position remains secure during shutdown. The unit is housed in die-cast aluminum with an impact-proof plastic cover, rated at IP54 for protection against dust and moisture. With a 10mm D-shaped shaft and an internal optical feedback system, it eliminates mechanical wear while maintaining a high resolution of 0.1° for demanding combustion environments.

Key Benefits
  • Engineered for seamless 24V AC/DC integration with Siemens LMV37 and LMV27 burner controls.
  • High-precision stepper motor ensures repeatable positioning for maximum combustion efficiency.
  • Internal optical feedback system provides real-time monitoring without the failure points of mechanical potentiometers.
  • Maintenance-free gear train features permanent lubrication and minimal backlash for long-term reliability.
  • Equipped with an integrated 12-foot (3.6m) connecting cable and ferrules for fast, field-ready installation.
Common Questions

Is the SQM33.550A9 compatible with manual linkage systems?
No, this actuator is designed for linkageless (parallel positioning) systems and is controlled directly by the burner management unit, such as the LMV3 series.

Can the direction of rotation be changed on the actuator itself?
The direction of rotation (clockwise or counterclockwise) is selectable via the basic burner control unit settings, not through physical switches on the actuator.

What is the running time for a 90-degree stroke?
The running time is variable between 5 and 120 seconds, as determined by the parameters set in the connected LMV basic unit.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$324.44

Original: $926.98

-65%
Siemens Combustion SQM33.550A9 Actuator

$926.98

$324.44

Siemens Combustion SQM33.550A9 Actuator

The Siemens SQM33.550A9 Actuator is a high-precision, electromotoric stepper motor designed for the load-dependent control of gas dampers, air dampers, and oil control valves in industrial burner applications. Specifically engineered for integration with Siemens LMV3 (including LMV27 and LMV37) linkageless burner management systems, this reversing actuator provides the accurate parallel positioning required for optimized fuel-air ratio management. It delivers a rated output torque of 3 Nm (approximately 27 in-lb) and features a self-holding torque of 2.6 Nm when power is removed, ensuring the damper position remains secure during shutdown. The unit is housed in die-cast aluminum with an impact-proof plastic cover, rated at IP54 for protection against dust and moisture. With a 10mm D-shaped shaft and an internal optical feedback system, it eliminates mechanical wear while maintaining a high resolution of 0.1° for demanding combustion environments.

Key Benefits
  • Engineered for seamless 24V AC/DC integration with Siemens LMV37 and LMV27 burner controls.
  • High-precision stepper motor ensures repeatable positioning for maximum combustion efficiency.
  • Internal optical feedback system provides real-time monitoring without the failure points of mechanical potentiometers.
  • Maintenance-free gear train features permanent lubrication and minimal backlash for long-term reliability.
  • Equipped with an integrated 12-foot (3.6m) connecting cable and ferrules for fast, field-ready installation.
Common Questions

Is the SQM33.550A9 compatible with manual linkage systems?
No, this actuator is designed for linkageless (parallel positioning) systems and is controlled directly by the burner management unit, such as the LMV3 series.

Can the direction of rotation be changed on the actuator itself?
The direction of rotation (clockwise or counterclockwise) is selectable via the basic burner control unit settings, not through physical switches on the actuator.

What is the running time for a 90-degree stroke?
The running time is variable between 5 and 120 seconds, as determined by the parameters set in the connected LMV basic unit.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

Shipping & Returns

Description

The Siemens SQM33.550A9 Actuator is a high-precision, electromotoric stepper motor designed for the load-dependent control of gas dampers, air dampers, and oil control valves in industrial burner applications. Specifically engineered for integration with Siemens LMV3 (including LMV27 and LMV37) linkageless burner management systems, this reversing actuator provides the accurate parallel positioning required for optimized fuel-air ratio management. It delivers a rated output torque of 3 Nm (approximately 27 in-lb) and features a self-holding torque of 2.6 Nm when power is removed, ensuring the damper position remains secure during shutdown. The unit is housed in die-cast aluminum with an impact-proof plastic cover, rated at IP54 for protection against dust and moisture. With a 10mm D-shaped shaft and an internal optical feedback system, it eliminates mechanical wear while maintaining a high resolution of 0.1° for demanding combustion environments.

Key Benefits
  • Engineered for seamless 24V AC/DC integration with Siemens LMV37 and LMV27 burner controls.
  • High-precision stepper motor ensures repeatable positioning for maximum combustion efficiency.
  • Internal optical feedback system provides real-time monitoring without the failure points of mechanical potentiometers.
  • Maintenance-free gear train features permanent lubrication and minimal backlash for long-term reliability.
  • Equipped with an integrated 12-foot (3.6m) connecting cable and ferrules for fast, field-ready installation.
Common Questions

Is the SQM33.550A9 compatible with manual linkage systems?
No, this actuator is designed for linkageless (parallel positioning) systems and is controlled directly by the burner management unit, such as the LMV3 series.

Can the direction of rotation be changed on the actuator itself?
The direction of rotation (clockwise or counterclockwise) is selectable via the basic burner control unit settings, not through physical switches on the actuator.

What is the running time for a 90-degree stroke?
The running time is variable between 5 and 120 seconds, as determined by the parameters set in the connected LMV basic unit.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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