SQM56.664R1H3 Siemens Damper Motor

Overview

The Siemens SQM56.664R1H3 is a high-precision reversing actuator designed for the accurate positioning of dampers, flow control valves, and butterfly valves in industrial and commercial burner applications. Part of the SQM5 series, this electromotive actuator is engineered for heavy-duty performance, providing reliable rotary motion for systems requiring a high degree of modulating accuracy and repeatability. It features a robust design with internal self-supervision and is compatible with various burner control systems.

Features

• High-precision rotary motion with low hysteresis for exceptional modulating accuracy
• Reversible operation with counterclockwise rotation (viewed from the drive shaft)
• Integrated auto/manual selector switch and manual forward/reverse toggle for easy adjustments
• Equipped with two limit switches and four internal auxiliary switches for flexible position feedback
• Exchangeable circuit boards allow for various control functions and signal inputs
• Externally visible position indicator for quick status monitoring
• Durable design with maintenance-free gearwheels and bearings

Specifications

• Model: SQM56.664R1H3
• Torque: 400 in-lb (approximately 45 Nm)
• Running Time: 50 seconds for 90 degree rotation (at 60 Hz)
• Operating Voltage: 110-120 Vac (50/60 Hz)
• Input Control Signal: 0 to 135 Ohm (using AGA56.42A… circuit board)
• Rotation Direction: Counterclockwise (CCW)
• Drive Shaft: 3/8 inch square, dual-ended shaft
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)
• Protection Rating: Designed for IP54 (with appropriate Pg inserts)
• Approvals: UL recognized and CSA certified

Applications

• Positioning of air and gas dampers in industrial burner systems
• Flow control in heating and boiler applications
• Precise modulation of butterfly valves for fuel and air ratio control
• Integration into HVAC systems requiring high-torque rotary actuators
• Use by Original Equipment Manufacturers (OEMs) for custom burner control assemblies