SQM50.464R2G3R Siemens Damper Motor

Overview

The Siemens SQM50.464R2G3R is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves. Part of the robust SQM5 series, this electromotive motor is engineered for industrial and commercial burner applications that require a high degree of modulating accuracy and repeatability. It features a clockwise rotation and is built to withstand demanding environments, often used in conjunction with burner controls to optimize combustion processes.

Features

• Internal auxiliary switches (up to 6) for flexible control and position signaling
• Auto/manual selector switch and manual forward/reverse toggle switch for simplified commissioning and adjustment
• Disengagement clutches for the drive shaft and cam drum to allow for quick manual alignment
• Externally visible position indicator for easy monitoring of the shaft location
• Field-exchangeable circuit boards and potentiometers for enhanced versatility and maintenance
• Durable construction with an IP54 rating to protect against dust and splashing water

Specifications

• Model: SQM50.464R2G3R
• Operating Voltage: 220 to 240 V AC (50/60 Hz)
• Torque: 140 in-lbs (15 Nm)
• Running Time: 25 seconds for 90 degrees at 60 Hz (30 seconds at 50 Hz)
• Control Input: 4 to 20 mA
• Potentiometer: 1000 Ohm / 90 degrees
• Rotation: Clockwise (CW)
• Shaft Type: 3/8 inch square shaft
• Power Consumption: 20 VA

Applications

• Precise modulating control for industrial process heating and commercial burners
• Positioning of flow control valves, butterfly valves, and air dampers in HVAC systems
• Supervision of burner ignition and low-fire positions via auxiliary switches
• Dual fuel applications requiring separate high-fire, low-fire, and ignition settings for different fuels
• Use in gas trains and burner control systems requiring reliable safety shut-off or regulation functions