SQM40.164R11SC Siemens Actuator

Overview

The Siemens SQM40.164R11SC is a robust, electromotoric actuator designed for the precise positioning of flow control valves, butterfly valves, dampers, and other rotary applications in industrial and commercial burner systems. As part of the SQM4 series, this counter-clockwise (CCW) rotating actuator is engineered for load-dependent control of gas, oil, and combustion air. It features a line voltage 3-position step control and is built to withstand demanding environments with a NEMA 4 rated enclosure and UL/CSA certification.

Features

• Counter-clockwise rotation variant specifically designed for precise 90 degree positioning
• Line 3-position step control allows for reliable integration with burner controls
• NEMA 4 weatherproof enclosure eliminates the need for additional weather shields
• Drive shaft disengagement clutch enables quick manual alignment with valves or linkages
• Synchronous motor ensures consistent running times and repeatable performance
• Internal position indication and adjustable cams for setting ignition and low/high fire positions
• Durable design with a die-cast aluminum lower housing and impact-resistant plastic cover

Specifications

• Model: SQM40.164R11SC
• Torque: 45 in-lb (5 Nm)
• Running Time: 15 seconds for 90 degrees
• Operating Voltage: AC 110V (50/60 Hz)
• Rotation: Counter-clockwise (CCW)
• Shaft Type: 3/8 inch Square Shaft
• Control Type: Line 3-Position Step
• Enclosure Rating: NEMA 4
• Approvals: UL and CSA certified

Applications

• Load-dependent control of gas, oil, and combustion air for industrial burners
• Positioning of flow control valves, butterfly valves, and air dampers
• Used in medium to high-capacity oil and gas burners and thermal process plants
• Suitable for both industrial and commercial HVAC and boiler applications
• Integration with Siemens burner controls such as the LME series for high turndown applications