SQM56.567R1A3 Siemens Damper Motor

Overview

The Siemens SQM56.567R1A3 is a high-torque reversing actuator designed for the precise positioning of air dampers, gas dampers, and flow control valves in medium to large capacity oil and gas burners. Engineered for industrial and commercial burner applications, this actuator provides high modulating accuracy and repeatability. It features a robust die-cast aluminum housing and a modular design that allows for field-exchangeable circuit boards and shafts, making it a versatile solution for complex combustion control systems.

Features

• High-torque performance with 310 in-lbs of output torque
• Position proportional control for precise modulating accuracy
• Internal auto/manual selector switch and manual forward/reverse toggle for easy commissioning
• Equipped with six easily adjustable internal SPDT switches (2 limit and 4 auxiliary)
• Externally visible shaft position indicator for real-time monitoring
• Self-centering shaft adapter and modular design for simplified installation and maintenance
• Low hysteresis drive system with double-offset gear train and potentiometer gearing
• Disengageable drive shaft and camshaft for manual alignment and adjustment

Specifications

• Model: SQM56.567R1A3
• Operating Voltage: 110-120 Vac, 50/60 Hz
• Torque: 310 in-lb (35 Nm)
• Running Time: 37 seconds for 90 degree rotation at 60 Hz (45 seconds at 50 Hz)
• Rotation: Counter-clockwise (CCW) factory setting
• Potentiometer: 1000 Ohm, 90 degree
• Shaft Design: 14 mm round, one-ended (standard)
• Control Signal: Position proportional
• Environmental Rating: NEMA 4 or IP54 (depending on mounting)
• Approvals: UL recognized, CSA certified, CE compliant

Applications

• Load-dependent control of gas flow, oil volume, and combustion air volume in industrial burners
• Positioning of butterfly valves, flow control valves, and large air dampers
• High-turndown burner systems requiring separate ignition and fire positions
• Dual-fuel burner applications utilizing auxiliary switches for multi-position control
• Integration with Siemens burner management systems such as the LMV5 series