SQM50.461R1Z4 Siemens Damper Motor

Overview

The Siemens SQM50.461R1Z4 is a high-precision reversing rotary actuator designed for the accurate positioning of air dampers, flow control valves, and butterfly valves in oil and gas burners. Part of the industrial-grade SQM5 series, this electromotive actuator is engineered for applications requiring exceptional modulating accuracy and repeatability. Its robust design features a die-cast aluminum housing and impact-resistant plastic covers, making it suitable for demanding combustion environments.

Features

• Reversing motor allows for flexible control in both clockwise and counterclockwise directions
• Equipped with two limit switches and up to four adjustable internal auxiliary switches for precise positioning
• Integrated auto/manual selector switch and manual forward/reverse toggle for easy maintenance and field adjustments
• Modular design supports exchangeable circuit boards and potentiometers to accommodate various control signals
• Externally visible shaft position indicator provides immediate visual feedback
• Disengagement clutches for the drive shaft and camshaft allow for manual adjustments during commissioning
• UL recognized, CSA certified, and CE approved for international safety and performance standards

Specifications

• Model: SQM50.461R1Z4
• Operating Voltage: 110-120 VAC (50/60 Hz)
• Torque: 140 in-lbs (16 Nm)
• Running Time: 25 seconds for 90 degrees (at 60 Hz)
• Rotational Range: Adjustable up to 135 degrees
• Shaft Type: 10 mm round single-ended shaft
• Protection Rating: NEMA 1, 2, 3, 3R, 3S, 5, 12, and 13 (IP54 equivalent)
• Operating Temperature: -5 F to +140 F (-15 C to +60 C)
• Power Consumption: 20 VA

Applications

• Positioning of air and fuel dampers in industrial and commercial combustion systems
• Control of butterfly valves and flow control valves for air/gas ratio management
• High-demand burner cycles requiring precise modulating control
• HVAC and boiler systems using Siemens burner controls like the LMV5 series
• Suitable for any industrial application requiring reliable rotary motion and position feedback