SQM53.480A1 Siemens Damper Motor

Overview

The Siemens SQM53.480A1 is a high-precision reversing actuator designed to drive air and gas dampers for oil and gas burners of medium to large capacity. Engineered for reliability in industrial and commercial combustion systems, this electromotive actuator provides load-dependent control of fuel and combustion air. It is designed to work in conjunction with 3-position or modulating controllers, or directly with burner controls to ensure optimal burner performance and energy efficiency.

Features

• Reversible synchronous motor that is locking-proof for enhanced safety
• Includes eight internal, easily accessible auxiliary switches for versatile control configurations
• Internal and external position indication for easy monitoring during operation
• Disengagement clutches for the drive shaft and camshaft allow for manual adjustments
• Maintenance-free gearwheels and bearings reduce long-term service requirements
• Durable housing made of die-cast aluminum with impact-proof plastic covers
• Low hysteresis geartrain ensures high modulating accuracy and repeatability
• Modular design supports a variety of exchangeable circuit boards and potentiometers

Specifications

• Model: SQM53.480A1
• Operating Voltage: AC 110 V (50/60 Hz)
• Torque: 25 Nm (approx. 220 in-lb)
• Running Time: 30 seconds for 90 degree rotation (at 50 Hz)
• Number of Switches: 8 (includes 2 limit switches and 6 auxiliary switches)
• Direction of Rotation: Counterclockwise (standard)
• Shaft Design: No shaft included (designed for interchangeable AGA58 series shafts)
• Protection Rating: IP54 (standard)
• Ambient Temperature: -20 C to +60 C

Applications

• Positioning of air and gas dampers in industrial oil and gas burners
• Control of flow control valves and butterfly valves in HVAC and process heating systems
• Integration with Siemens LMV5, LME7, or other electronic burner control systems
• Use in applications requiring high-precision rotary motion and modulating control