SQM41.244R11SC Siemens Actuator

Overview

The Siemens SQM41.244R11SC is a high-performance modulating actuator designed for the precise positioning of flow control valves, butterfly valves, and dampers. Part of the Siemens SQM4 series, this electromotoric actuator is engineered for clockwise rotation and is particularly suited for industrial and commercial burner applications. It provides a cost-effective solution for load-dependent control of gas, oil, and combustion air, featuring a robust industrial gear train and high positional accuracy. Its NEMA 4 rating ensures it is suitable for various environments without the need for additional weather shields.

Features

• Modulating control with multiple signal input compatibility
• Robust industrial gear train for reliable, long-term operation
• NEMA 4 weatherproof enclosure allows for flexible mounting orientations
• Drive shaft can be disengaged from the motor for quick manual alignment
• Internal position indication and adjustable cams for precise switching points
• UL and CSA approved for use in North American markets
• High positional accuracy for precise flow control

Specifications

• Model: SQM41.244R11SC
• Torque: 90 in-lb (10 Nm)
• Running Time: 25 to 30 seconds for 90 degree rotation
• Rotation Direction: Clockwise (CW)
• Input Signals: 4-20 mA, 0-135 Ohm, or 2-10 VDC
• Operating Voltage: AC 110 V (50/60 Hz)
• Shaft Type: 3/8 inch Square (9.5 mm)
• Potentiometer: Single 1000 Ohm
• Protection Rating: NEMA 4 / IP66

Applications

• Control of air and gas dampers in medium to high-capacity burners
• Positioning of butterfly valves and oil pressure controllers
• Thermal process plants requiring rotary motion for load-dependent flow control
• Use in connection with 3-position or modulating controllers and burner controls like the LME series
• HVAC automation in industrial heating and cooling systems