SQM53.461R1G3 Siemens Damper Motor

Overview

The Siemens SQM53.461R1G3 is a high-precision, high-torque reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves in medium to large capacity burner systems. Engineered for industrial and commercial applications, this robust rotary actuator provides reliable modulating control, ensuring optimal combustion efficiency and repeatable performance in demanding HVAC and boiler environments.

Features

• High-torque performance providing 200 in-lbs of torque for large industrial dampers
• Advanced modulating accuracy and repeatability for precise air-to-fuel ratio control
• Integrated auto/manual selector switch and manual forward/reverse toggle for easy onsite adjustment
• Externally visible shaft position indicator and internal scales for simplified monitoring
• Adjustable cam switches and internal auxiliary switches for flexible sequence control
• Durable construction featuring die-cast aluminum housing and impact-resistant covers
• Flexible mounting options allowing for installation in any orientation

Specifications

• Model: SQM53.461R1G3
• Torque: 200 in-lb (23 Nm)
• Running Time: 25 seconds for 90-degree rotation
• Operating Voltage: 110-120 VAC (50/60 Hz)
• Control Input: 4-20 mA
• Shaft Type: 10 mm round single-ended shaft
• Rotation Direction: Counter-clockwise (CCW) default, field reversible
• Protection Rating: NEMA 4 (when using appropriate conduit fittings)
• Weight: Approximately 12 lbs (5.4 kg)

Applications

• Load-dependent control of gas flow, oil volume, and combustion air in industrial burners
• Positioning of large air dampers in HVAC and ventilation systems
• Accurate modulation of butterfly valves and flow control valves in process heating
• Use with Siemens burner controls such as the LMV5 or other 3-position/modulating controllers
• Suitable for high-demand applications requiring precise feedback and linearization functions