SQM45.291B9 Siemens Actuator

Overview

The Siemens SQM45.291B9 is a high-precision servo actuator designed for driving oil pressure controllers, butterfly valves, dampers, and other ancillary equipment in combustion systems. Engineered for use with oil and gas burners of medium to large capacity, this actuator is primarily used for load-dependent control of gas flow, oil volume, and combustion air volume. It is specifically designed to work in connection with the electronic fuel/air ratio control LMV5 system, providing reliable and accurate rotary motion for thermal process plants.

Features

• CAN bus communication protocol for seamless integration with modern control systems like the LMV5
• Replaces the older SQM45.291A9 model with updated compatibility
• Spur gear drive provides robust and reliable mechanical movement
• Self-checking mechanism ensures safety and reliability during operation
• Sturdy 10mm diameter shaft with a Woodruff key for secure mechanical attachment
• Protection rating of IP54 for durability in industrial environments
• Compact design suitable for various burner mounting configurations

Specifications

• Model: SQM45.291B9
• Manufacturer Part Number: S55451-D201-A100
• Nominal Output Torque: 3 Nm (27 in-lb)
• Holding Torque: 1.5 Nm
• Running Time: 10 seconds for 90 degrees
• Operating Voltage: Power supplied via CAN bus (associated with 12 VAC systems)
• Shaft Type: 10mm diameter with Woodruff key
• Weight: Approximately 0.99 kg (2.2 lbs)
• Radial Bearing Force: 190 N max

Applications

• Load-dependent control of gas flow and oil volume in industrial burners
• Positioning of air dampers for optimal combustion air volume
• Driving oil pressure controllers and butterfly valves in thermal process plants
• Integration with Siemens LMV5 linkageless burner management systems
• Use in medium to large capacity oil and gas burner equipment