SQM53.461R1A3 Siemens Damper Motor

Overview

The Siemens SQM53.461R1A3 is a high-precision, reversing electromotive actuator designed for the accurate positioning of dampers, flow control valves, and butterfly valves in industrial and commercial burner applications. Part of the robust SQM5 series, this actuator is engineered for rotary motion requiring high modulating accuracy and repeatability. It features a die-cast aluminum housing and impact-resistant plastic covers, ensuring durability in demanding environments.

Features

• Equipped with up to six internal, easily adjustable micro switches for flexible control sequencing
• Includes an auto/manual selector switch and a manual forward/reverse toggle switch for easy commissioning and adjustment
• Features a self-centering shaft adapter and disengagement clutches for the drive shaft and cam drum to simplify alignment
• Provides high modulating accuracy with low hysteresis, supported by double-offset drive and potentiometer gearing
• Integrated 90-degree feedback potentiometer for precise position monitoring
• Field-reversible rotation (set to counter-clockwise by default for this model) and various mounting options for versatile installation

Specifications

• Torque Output: 200 in-lbs (approx. 22.5 Nm)
• Running Time: 25 seconds for 90-degree rotation (at 60 Hz) or 30 seconds (at 50 Hz)
• Operating Voltage: 110V AC (50/60 Hz)
• Control Signal: Position proportional with 4-20 mA input capability (depending on installed circuit board)
• Feedback: 1000 Ohm, 90-degree potentiometer
• Shaft Design: 10 mm round shaft
• Rotation: Counter-clockwise (CCW)
• Protection Rating: UL and CSA approved; housing designed for various industrial mounting positions

Applications

• Precise positioning of air dampers in industrial and commercial combustion systems
• Control of flow valves and butterfly valves for fuel or air modulation
• Ideal for high-turn-down burner applications requiring reliable ignition and low-fire positions
• Suitable for dual-fuel applications where separate ignition and firing positions are necessary
• Used in HVAC and boiler systems for air volume control and process heating efficiency