Overview
The Siemens SQM53.464R1Z4 is a high-precision, reversing electromotive actuator from the SQM5 series, designed for the accurate positioning of air and gas dampers, flow control valves, and other rotary applications in industrial combustion systems. Engineered for high-capacity burners, this actuator provides reliable, load-dependent control of fuel and air mixtures to optimize combustion efficiency. It features a robust design suitable for demanding environments and is designed to integrate seamlessly with Siemens burner controls or modulating controllers.
Features
- High torque output of 200 in-lbs (22.5 Nm) ensures powerful operation for large dampers and valves
- Rapid running time of 25 seconds for a 90-degree stroke at 60 Hz (30 seconds at 50 Hz)
- Multi-input electronic circuit board (AGA56.9) supports a wide range of control signals including 4-20 mA, 0-10 Vdc, and 0-135 Ohm
- Counter-clockwise (CCW) rotational direction (viewed from the gear end)
- Integrated 1000/1000 Ohm dual potentiometer (ASZ22.803) for precise 90-degree position feedback
- Equipped with two limit switches and four internal auxiliary switches for flexible control logic
- Disengageable drive shaft and cam drum for easy manual adjustment and commissioning
- Durable construction with externally visible position indication and a 3/8-inch square dual-ended shaft
Specifications
- Model: SQM53.464R1Z4
- 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
- Control Input: Multi-input (AGA56.9 circuit board)
- Feedback: 1000/1000 Ohm potentiometer (90-degree)
- Shaft Design: 3/8-inch square, two-ended
- Rotational Direction: Counter-clockwise (CCW)
- Switch Count: 6 total (2 limit, 4 auxiliary)
- Agency Approvals: UL recognized, CSA certified, and CE approved
Applications
- Load-dependent control of combustion air volume in medium to large capacity industrial burners
- Precise regulation of gas flow and fuel oil volume in HVAC and boiler systems
- Positioning of flow control valves, butterfly valves, and heavy-duty air dampers
- Use in connection with 3-position or modulating controllers (e.g., 4-20 mA) for automated building management
- Integration with Siemens burner control systems such as the LMV5 or LME series for safety-critical combustion supervision



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