SQM56.667R1Z3 Siemens Damper Motor

Overview

The Siemens SQM56.667R1Z3 is a high-torque reversing actuator designed for the precise positioning of air and gas dampers, flow control valves, and butterfly valves in industrial burner applications. This heavy-duty motor belongs to the SQM5 series and is engineered for systems requiring high modulating accuracy and repeatability. It features a robust design capable of driving large loads with counterclockwise rotation and is compatible with various Siemens burner controls, such as the LMV5 series.

Features

• Ultra-high torque capacity of 400 in-lbs for heavy-duty industrial loads
• Multi-input electronic circuit board supporting 4-20mA, 0-10VDC, 0-135 Ohm, and floating control signals
• Six internal, easily adjustable switches including two limit switches and four auxiliary switches
• Auto/manual selector switch and manual forward/reverse toggle for easy field adjustment
• Internal electronic linearization and split-range control capabilities
• Externally visible position indicator for real-time monitoring
• Durable construction with a 14mm round single-ended shaft

Specifications

• Model: SQM56.667R1Z3
• Torque: 400 in-lbs (45 Nm)
• Running Time: 50 seconds for 90-degree travel
• Operating Voltage: 110-120 VAC (50/60 Hz)
• Rotation: Counterclockwise (CCW)
• Nominal Angle of Rotation: 90 degrees
• Shaft Type: 14 mm round single-ended
• Protection Rating: NEMA 4 (when properly installed)
• Weight: Approximately 10-12 lbs (4.54-5.4 kg)

Applications

• Supervision and control of air or gas dampers in large industrial burners
• Precise positioning of fuel flow control valves and butterfly valves
• Use in HVAC and boiler systems requiring high-torque modulation
• Integration with Siemens LMV5, LME7, and other burner control units
• Industrial processes requiring high-accuracy rotary motion and repeatable positioning