Overview
The Siemens SQM20.16502 is a heavy-duty, reversible electromotoric actuator designed for the precise control of air dampers and control valves in oil and gas burners. Engineered for industrial and commercial burner applications, this actuator is a critical component for optimizing combustion efficiency and ensuring safety. It features a robust design with a die-cast aluminum housing and a synchronous motor that provides reliable, maintenance-free operation.
Features
- Reversible synchronous motor that is locking-proof
- Heavy-duty construction with a 12mm diameter drive shaft and gear train shafts made of hardened steel
- Integrated cam stack with adjustable cams for precise setting of switching points
- Five auxiliary switches for versatile control and feedback options
- Impact-proof and heat-resistant plastic cover in dark grey
- Maintenance-free reduction gearing with self-lubricating sinter-bronze bearings
- Internal scale for easy adjustment of cam positions
Specifications
- Model: SQM20.16502
- Operating Voltage: AC 220 V to 240 V (50/60 Hz)
- Power Consumption: 9 VA
- Nominal Torque: 20 Nm
- Starting Torque: 20 Nm
- Holding Torque: 12 Nm
- Running Time: 29 seconds for 90 degrees (at 50 Hz)
- Direction of Rotation: Counterclockwise (facing the drive shaft)
- Number of Auxiliary Switches: 5
- Protection Rating: IP54
- Operating Temperature: -20 C to +60 C
- Weight: Approximately 1.7 kg
Applications
- Control of air dampers in industrial and commercial oil and gas burners
- Regulation of fuel flow via control valves
- Use in connection with burner controls and switching devices equipped with changeover contacts
- Integration into HVAC and boiler systems for process air and heat management



Reviews
There are no reviews yet.