SQM48.697B9 Siemens Actuator

Overview

The Siemens SQM48.697B9 is a high-torque, electromotoric rotary actuator designed for the precise control of gas and air dampers, as well as oil volume and butterfly valves. As a critical component of burner management systems, it is primarily used in conjunction with the Siemens LMV5 electronic ratio control system. This “B” model serves as the current, improved direct replacement for the legacy SQM48.697A9, offering reliable modulation for industrial and commercial burners of medium to large capacity.

Features

• CAN bus communication interface for seamless integration with LMV5 burner controls
• High holding torque and nominal output torque of 35 Nm (approximately 310 in-lb)
• Robust construction featuring a die-cast aluminum lower housing and impact-proof, heat-resistant plastic cover
• Hardened steel drive shaft and steel spur gears for enhanced durability
• Field-adjustable running time between 60 and 120 seconds for 90-degree rotation
• Bi-directional rotation capabilities (clockwise or anti-clockwise)
• IP54 protection rating (when used with appropriate M16 glands)

Specifications

• Model: SQM48.697B9 (Replaces SQM48.697A9)
• Torque: 35 Nm (Nominal and Holding)
• Running Time: 60 to 120 seconds (for 90 degrees)
• Shaft Type: 14 mm diameter with key
• Operating Voltage: Via CAN bus (approximately 2x 12 V AC)
• Operating Temperature: -20 to +60 degrees Celsius
• Mounting: Face mounting
• Weight: Approximately 4.0 to 5.0 lbs

Applications

• Load-dependent control of combustion air volume in industrial burners
• Precise regulation of gas flow and oil volume in large-capacity burner systems
• Driving butterfly valves and dampers in thermal process plants
• Integration with Siemens LMV5 series electronic ratio control systems
• Industrial automation and mechanical system control requiring high-torque rotary motion