SQM50.264R1Z3 Siemens Damper Motor

Overview

The Siemens SQM50.264R1Z3 is a high-precision reversing actuator designed for the accurate positioning of air dampers, fuel valves, and butterfly valves in burner and boiler systems. Engineered for industrial combustion applications, this rotary actuator provides reliable modulation and consistent repeatability. It features a robust design that allows for mounting in any orientation and includes an integrated multi-input circuit board for seamless integration into various control system architectures.

Features

• Equipped with two limit switches and four internal auxiliary switches for enhanced control logic
• Features a multi-input circuit board supporting 4 to 20 mA, 0 to 135 Ohm, and 0 to 10 Vdc signals
• Integrated auto/manual selector and manual forward/reverse toggle switches for local control
• Externally visible shaft position indicator and low hysteresis gearing for precise motion monitoring
• Drive shaft and cam drum disengagement clutches for quick manual alignment
• Durable construction with field-reversible rotational direction

Specifications

• Model: SQM50.264R1Z3
• Torque: 90 in-lb (10.2 Nm)
• Running Time: 8 seconds for 90 degree rotation
• Operating Voltage: 110-120 Vac (50/60 Hz)
• Rotation Direction: Counterclockwise (CCW)
• Shaft Type: 3/8 inch square, dual-ended
• Potentiometer: 1000 Ohm, 90 degree
• Protection Rating: IP54
• Operating Temperature: -4 F to 140 F (-20 C to 60 C)

Applications

• Modulating air and fuel valves in industrial burner management systems
• Controlling airflow dampers in large-scale HVAC and ventilation installations
• Regulating combustion processes in commercial boiler and heating systems
• Ideal for high-demand environments requiring fast positioning and high modulating accuracy