SQM41.265R11SC Siemens Actuator

Overview

The Siemens SQM41.265R11SC is a high-precision, electromotoric actuator designed for the accurate positioning of air and gas dampers, butterfly valves, and oil pressure controllers. Part of the SQM4 series, this actuator is engineered for clockwise rotation and features a line voltage (3-position/step) control signal. It is built to operate in demanding industrial and commercial combustion environments, providing reliable load-dependent control of fuel and air flow to optimize burner performance.

Features

• Synchronous motor design is stall-proof and ensures consistent timing across operations
• Manual disengagement of the drive shaft from the gear train via a coupling pin for easy adjustment
• Internal position indication with adjustable cams and scales for precise switching point settings
• NEMA 4 rated enclosure provides protection against weather and environmental factors
• Constructed with a die-cast aluminum lower housing and a heat-resistant plastic cover for durability
• UL and CSA approved for use in North American markets, specifically designed to accommodate flexible conduit connections

Specifications

• Model: SQM41.265R11SC
• Direction of Rotation: Clockwise (CW)
• Torque: 90 in-lb (10 Nm)
• Running Time: 30 seconds for 90 degrees (at 60 Hz)
• Operating Voltage: AC 110 V (50/60 Hz)
• Control Signal: Line 3-position / Step
• Drive Shaft: 10mm D-type shaft
• Auxiliary Switches: Includes 6 internal switches
• Potentiometer: Equipped with 1 single 1000 Ohm potentiometer

Applications

• Load-dependent control of gas, oil, and combustion air in industrial burners
• Driving butterfly valves and dampers in HVAC and thermal process plants
• Integration with 3-position or modulating controllers and burner controls like the Siemens LME or LMV series
• Use in medium to high-capacity oil and gas burners requiring precise rotary motion control