Overview
The Siemens SQM53.461R1Z3 is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves. As part of the SQM5 series, this electromotive actuator is engineered for industrial and commercial burner applications that require a high degree of modulating accuracy and repeatability. It features a robust die-cast aluminum housing and impact-proof plastic covers, ensuring durability in demanding environments.
Features
- Self-centering shaft adapter for reduced installation time and error-free mounting
- Internal and external position indication for easy monitoring
- Six internal, easily adjustable auxiliary switches (two limit and four auxiliary)
- Disengageable drive shaft and camshaft for manual adjustments
- Integrated auto/manual selector switch and manual forward/reverse toggle
- Maintenance-free gearwheels and bearings for long-term reliability
- Field-reversible rotational direction (default counter-clockwise)
Specifications
- Model: SQM53.461R1Z3
- Torque: 200 in-lbs (22.5 Nm)
- Running Time: 25 seconds for 90 degrees (at 60 Hz)
- Operating Voltage: 110-120 VAC (50/60 Hz)
- Input Signals: Multi-input (4-20 mA, 0-135 Ohm, 0-10 Vdc, 0-20 mA)
- Shaft Design: 10 mm round, single-ended
- Rotation: Counter-clockwise (CCW)
- Protection Rating: NEMA 1, 2, 3, 3R, 3S, 5, 12, 13 (IP54)
- Operating Temperature: -5 F to 140 F (-15 C to 60 C)
Applications
- Positioning of air and gas dampers in industrial burner systems
- Control of fuel/air ratio management for high-demand burner cycles
- Operation of flow control and butterfly valves in process heating
- Compatible with Siemens burner controls such as the LMV5 or LME series
- Suitable for both continuous and intermittent modulating duty in HVAC and boiler applications



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