SQM50.361R1Z3 Siemens Damper Motor

Overview

The Siemens SQM50.361R1Z3 is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves in burner and HVAC applications. Engineered for industrial and commercial use, this electromotive actuator features a multi-function electronic circuit board that accommodates various control input signals, including 4 to 20 mA, 0 to 135 Ohms, and 0 to 10 Vdc. Its robust construction, featuring a die-cast aluminum housing and impact-resistant plastic covers, ensures reliable performance and longevity in demanding environments.

Features

• Internal multi-function circuit board (AGA56.9) supports multiple input and output signals, electronic linearization, and split-ranging
• Equipped with two limit switches and four internal auxiliary switches for flexible control configurations
• Features drive shaft and cam drum disengagement clutches for manual adjustment
• Integrated auto/manual selector switch and manual forward/reverse toggle switch
• High degree of modulating accuracy and repeatability for precise process control
• Maintenance-free gearwheels and bearings for reduced service requirements
• Reversible synchronous motor allows for field-selectable clockwise or counterclockwise operation

Specifications

• Model: SQM50.361R1Z3
• Torque: 140 in-lbs (16 Nm)
• Running Time: 12 seconds for 90 degrees (at 60 Hz)
• Operating Voltage: 110-120 VAC (50/60 Hz)
• Power Consumption: 20 VA
• Rotational Direction: Counterclockwise (CCW) standard; field reversible
• Shaft Design: 10 mm round, single-ended
• Potentiometer: 1000 Ohm, 90-degree feedback
• Protection Rating: NEMA 1, 2, 3, 3R, 3S, 5, 12, 13 (IP54)
• Operating Temperature: -5 F to 140 F (-15 C to 60 C)

Applications

• Positioning of air and gas dampers in industrial and commercial burner systems
• Control of butterfly valves and flow control valves for process heating
• Modulation of HVAC systems requiring high turndown and reliable ignition
• Use in dual-fuel applications to establish separate high-fire, low-fire, and ignition positions
• Integration with Siemens burner controls such as the LMV5 or LME series for safety shut-off and modulation