SQM56.560R1H4 Siemens Damper Motor

Overview

The Siemens SQM56.560R1H4 is a high-torque, reversing electromotive actuator designed to precisely position air and gas dampers, flow control valves, and butterfly valves. As part of the SQM5 series, this actuator is engineered for industrial and commercial burner applications of medium to large capacity, ensuring load-dependent control of gas flow, oil volume, and combustion air. It features a robust design capable of delivering up to 310 in-lb of torque and is particularly well-suited for systems requiring a high degree of modulating accuracy and repeatability.

Features

• Equipped with two limit switches and four internal auxiliary switches for complex feedback and control
• Features an auto/manual selector switch and a manual forward/reverse toggle switch for easy field adjustments
• Includes drive shaft and cam drum disengagement clutches to facilitate maintenance and setup
• Provides externally visible position indication for quick status monitoring
• Designed with low hysteresis gearing for precise rotational resolution and modulating accuracy
• Supports field-exchangeable circuit boards and potentiometers for enhanced versatility
• UL and CSA approved for use in North American markets and CE approved for European standards

Specifications

• Model: SQM56.560R1H4
• Torque: 310 in-lb (approx. 35-40 Nm)
• Running Time: 37 seconds for 90 degree rotation (at 60 Hz)
• Operating Voltage: 110-120 VAC, single-phase
• Input Signal: 0 to 135 Ohm (Control Board H)
• Potentiometer Range: 135 degrees
• Drive Shaft: No shaft included (designed for selection of field-exchangeable shafts)
• Direction of Rotation: Field reversible (default is counterclockwise)
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)
• Protection Rating: NEMA 1, 2, 3, 3R, 4, 12, and 13 (IP54 equivalent)

Applications

• Load-dependent control of combustion air and fuel volume in oil and gas burners
• Positioning of air dampers in industrial process heating and HVAC systems
• Modulation of butterfly valves and flow control valves for precise flow regulation
• Replacement of competitive actuators such as Honeywell Mod III or Mod IV using specific mounting brackets
• Integration into larger burner management systems for commercial and industrial boiler applications