SQM50.364R1Z3 Siemens Damper Motor

Overview

The Siemens SQM50.364R1Z3 is a high-precision reversing actuator designed for the accurate positioning of dampers, butterfly valves, and flow control valves. Part of the robust SQM5 series, this motor is engineered for industrial and commercial burner applications that require a high degree of modulating accuracy and repeatability. It features a multi-function internal circuit board and is factory-configured for counterclockwise rotation, providing reliable performance in demanding HVAC and process heating environments.

Features

• High modulating accuracy with 250 repositions through 90 degrees of travel
• Integrated multi-function electronic circuit board (AGA56.9) for versatile control
• Equipped with two limit switches and four internal auxiliary switches for enhanced control logic
• Durable construction with drive shaft and cam drum disengagement clutches
• Externally visible shaft position indicator for easy monitoring
• Auto/manual selector switch and manual forward/reverse toggle switch for field adjustments
• Field-exchangeable circuit boards and potentiometers for increased flexibility

Specifications

• Torque: 140 in-lb (16 Nm)
• Running Time: 12 seconds for 90 degree rotation (at 60 Hz)
• Operating Voltage: 110-120 Vac, 50/60 Hz
• Shaft Type: 3/8 inch square, dual-ended
• Rotational Direction: Counterclockwise (CCW) facing the drive shaft
• Angular Rotation: Adjustable up to 160 degrees (factory set for 90 degrees)
• Protection Rating: IP54
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)

Applications

• Positioning of air and gas dampers in industrial burner systems
• Control of butterfly valves for fuel-to-air ratio modulation
• Use in process heating applications requiring precise flow control
• Integration with Siemens burner controls or other third-party HVAC management systems
• Replacement for competitive actuators in existing boiler and furnace installations