Siemens SQN70.224B20 actuator

Siemens SQN70.224B20 actuator: fast and compact drive for small and medium power burners. Buying Siemens SQN70.224B20 means equipping your burner with a high-speed electric drive for precise air control. This model is specially designed for gas and oil burners of small and medium power and provides optimal fuel-air mixture ratio for maximum efficiency and safety. Purpose and application: The Siemens SQN70.224B20 actuator is designed to rotate the air dampers of burner devices, controlling the exact ratio of fuel and air mixture. It is installed in single-stage, two-stage or modulating burners of small and medium power. Main functions: damper positioning during ignition — supplying the amount of air necessary for safe ignition; damper control when the burner operates at low and high power; opening the damper during combustion chamber purge to remove residual gases. The actuator is compatible with flame safeguards (burner managers) LOA, LFL, LMG, LME, LMO, as well as with a 3-position controller and RWF40 controller. Technical specifications: Siemens SQN70.224B20 is equipped with a reversing synchronous motor with stall protection. Electrical parameters: supply voltage: 220…230 V AC; supply frequency: 50…60 Hz; power consumption: 6 VA; motor type: reversing synchronous with stall protection. Mechanical characteristics: torque (nominal): 1.5 Nm; rotation time for 90°: 4 seconds; rotation direction: counterclockwise; working rotation angle: 0…160°, adjustable; diameter pr