Overview
The Siemens SQM10.15502 is a reversible electromotoric actuator designed for the precise positioning of air dampers and control valves in oil and gas burners. Featuring a robust, locking-proof synchronous motor, this actuator is engineered for use with controllers or switching devices that utilize changeover contacts. Its durable construction, including a die-cast aluminum gear housing and an impact-proof plastic cover, makes it a reliable choice for industrial burner systems where high accuracy and longevity are critical.
Features
- Reversible synchronous motor ensures consistent speed regardless of load
- Integrated cam stack with adjustable cams for precise switching point settings
- Manual disengagement lever allows the gear train to be decoupled for easy drive shaft adjustment
- Self-lubricating sinter-bronze bearings minimize maintenance requirements
- Impact-resistant and heat-resistant plastic cover with a dark-grey finish
- Support for integrated potentiometers to provide remote position indication or feedback control
Specifications
- Model: SQM10.15502
- Operating Voltage: AC 220 V to 240 V (50/60 Hz)
- Rated Torque: 10 Nm
- Starting Torque: 10 Nm
- Holding Torque: 4 Nm
- Running Time: 14 seconds for 90 degrees; 20 seconds for 130 degrees (at 50 Hz)
- Direction of Rotation: Counterclockwise (when facing the drive shaft)
- Number of Auxiliary Switches: 5
- Protection Rating: IP54
- Weight: Approximately 1.7 kg
Applications
- Positioning of air dampers in industrial and commercial burner systems
- Control of fuel-to-air ratios in oil and gas combustion equipment
- Operation of control valves for heat-generating plants
- Integration with Siemens burner controls such as the LMV series for automation and safety supervision



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