Overview
The Siemens SQM53.460R1Z3 is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, butterfly valves, and other HVAC or industrial burner components requiring rotary motion. Engineered for advanced modulation, this electromotive actuator is part of the robust SQM5 series, known for its exceptional repeatability and modulating accuracy. It features a modular design that supports various control input signals and is capable of providing internal position indication, making it a versatile solution for both commercial and industrial combustion systems.
Features
- Reversing actuator functionality suitable for applications requiring rotary motion
- High modulating accuracy and repeatability with limited drive shaft play
- Modular design allows for field-exchangeable circuit boards and potentiometers
- Equipped with two limit switches and up to four adjustable auxiliary switches
- Integrated auto/manual selector switch and manual forward/reverse toggle switch for easy commissioning
- Shaft and cam drum disengagement clutches for quick manual alignment
- Durable die-cast aluminum housing with impact-proof, heat-resistant plastic covers
- Capable of being mounted in any orientation for installation flexibility
Specifications
- Model: SQM53.460R1Z3
- Torque: 200 lb-in (approx. 22.5 Nm)
- Running Time: 25 seconds for 90 degree rotation (at 60 Hz)
- Operating Voltage: 110-120 Vac, 50/60 Hz
- Control Input: Multi-input (Z board) supporting 4-20 mA, 0-10 Vdc, 0-135 Ohm, and position proportional/floating control
- Rotational Direction: Counterclockwise (CCW) standard (when facing the gear end)
- Shaft Type: None (designed for field-exchangeable shafts, must be ordered separately)
- Rotation Angle: 90 degrees
- Operating Temperature: -4 F to 140 F (-20 C to 60 C)
- Protection Rating: IP54 (NEMA 12)
Applications
- Positioning of air and gas dampers in industrial and commercial burner systems
- Flow control and butterfly valve actuation for precise fuel-to-air ratio control
- Industrial process heating applications requiring high turndown and reliable ignition
- Dual fuel burner configurations utilizing auxiliary switches for separate ignition and fire positions
- Replacement of competitive actuators using various mounting bracket and shaft options



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