Actionneur Siemens « SQM10.15562 »

The Siemens SQM10.15562 actuator (catalogue article 884.712.004) is a rotary actuator of a type used to position air dampers and mixing valves in industrial heating systems. The actuator translates a control signal into rotational movement, adjusting the airflow or water flow through the damper or valve. Actuators of this class are selected by torque, running time, control signal format (three-point, 0-10 V, or on/off), shaft or coupling pattern, angle of rotation, and the presence of integral auxiliary switches. When used with three-way or four-way mixing valves, the motor is typically a separate spare part — a point to verify before ordering a replacement. In a burner system, such an actuator is driven by the burner control (flame safeguard) during modulation. The control adjusts the actuator’s position based on temperature or pressure feedback, varying the combustion air flow or the fuel/air ratio. Over time, common failure modes include stripped gear trains, failed end switches, or a seized valve stem after an extended period of inactivity. When replacing an actuator of this type, confirm the electrical connection (e.g., modulating signals are not interchangeable across all models) and mechanical fit (shaft diameter, coupling dimensions, and angle range). The SQM10 series generally belongs to this category, but no specific torque, running time, or voltage data is available for this article.