SQM41.174R10SC Siemens Actuator

Overview

The Siemens SQM41.174R10SC is a high-precision electromotoric actuator designed for the precise positioning of air dampers and control valves in oil and gas burners. Engineered for industrial and commercial burner applications, this actuator provides reliable, load-dependent control of combustion air, gas, or oil flow. Its rugged construction features a die-cast aluminum lower housing and an impact-proof, heat-resistant plastic cover, ensuring durability in demanding thermal process plants.

Features

• Clockwise rotation with a running time of 15 seconds for a 90 degree turn
• Integrated 3/8 inch square shaft for secure mechanical connection
• Drive shaft disengagement clutch for quick manual alignment with valves or linkages
• Internal position indication with clearly marked, adjustable limit and auxiliary switches
• NEMA 4 rated weatherproof enclosure allows for mounting in any orientation
• Synchronous motor provides consistent torque and speed performance
• UL and CSA approved for use in North American markets with flexible conduit facilities

Specifications

• Model: SQM41.174R10SC
• Torque: 45 in-lb (5 Nm)
• Operating Voltage: AC 110 V (50/60 Hz)
• Running Time: 15 seconds for 90 degrees
• Rotation Direction: Clockwise
• Shaft Type: 3/8″ Square
• Control Signal: 2-position (On/Off)
• Protection Rating: NEMA 4 / IP66 equivalent

Applications

• Control of air dampers and butterfly valves in medium to high capacity burners
• Load-dependent regulation of fuel and air mixtures in industrial thermal process plants
• Safety shut-off and precise flow control for oil and gas fired equipment
• Integration with 3-position or modulating burner controllers for HVAC systems