SQM50.461R1G4R Siemens Damper Motor

Overview

The Siemens SQM50.461R1G4R is a high-precision reversing rotary actuator from the SQM5 series, designed to accurately position air and gas dampers, flow control valves, and butterfly valves in combustion systems. Engineered for both industrial and commercial applications, this motor is particularly well-suited for systems requiring a high degree of modulating accuracy and repeatability. It features a rugged, compact design and can be mounted in any position, providing significant installation flexibility for both new systems and as a replacement for competitive actuators.

Features

• Precision modulating control for accurate air and fuel ratio management
• Equipped with six internal, easily accessible SPDT switches for position feedback and safety limits
• Modular design supports exchangeable circuit boards for functions like zero/span adjustment and electronic linearization
• Auto/manual selector switch and manual forward/reverse toggle switch for easier commissioning and adjustment
• Low hysteresis drive system with double-offset gears and potentiometer gearing for reliable performance
• Externally visible shaft position indicator for immediate visual status
• Durable IP-rated housing suitable for demanding industrial environments

Specifications

• Model: SQM50.461R1G4R
• Operating Voltage: 110-120 VAC (50/60 Hz)
• Torque: 140 in-lb (approximately 16 Nm)
• Running Time: 25 seconds for 90 degree rotation (at 60 Hz)
• Control Signal: 4-20 mA proportional input
• Rotational Range: Designed for 135 degree maximum travel
• Rotational Direction: Clockwise (CW) when facing the gear end
• Shaft Design: 10 mm round shaft, single-ended
• Approvals: UL recognized, CSA certified, and CE approved
• Operating Temperature: -20 C to +60 C

Applications

• Control of air and gas dampers in industrial and commercial burner systems
• Modulating butterfly valves and flow control devices for fuel regulation
• Integration with Siemens LMV burner management systems or other HVAC controllers
• Air and gas flow regulation in heating processes and boiler setups
• Retrofitting existing burner systems where high torque and precise feedback are required