Attuatore Siemens SQM41.245A21

Siemens SQM41.245A21 actuator — precise positioning of dampers in powerful burners. Siemens SQM41.245A21 is a professional electronic actuator of the SQM40 series for controlling air and gas dampers in medium and large burners. It ensures the most accurate fuel-to-air ratio, increasing burner efficiency and reducing operating costs. Application: SQM40 series actuators are used for positioning air and gas dampers in large and medium oil and gas burners, allowing regulation of gas flow as well as oil and air quantities to maintain optimal combustion parameters. The actuator works together with burner automation, a controller, or an electronic control device. It is also intended for driving gas and air dampers, oil control valves, and other auxiliary devices. Key technical specifications: The actuator provides 90° clockwise rotation, nominal torque 10 Nm, opening time 30 seconds. Electronic version with analog output, D-type drive shaft diameter 10 mm, one potentiometer, power supply AC 230 V. Manufacturer's warranty: 5 years. Reliable design without unnecessary maintenance: Actuator housing: lower part cast aluminum, cover made of thermoplastic. Drive shaft disengages manually, re-engagement automatic. Gear mechanism and bearings are permanently lubricated during operation and require no regular maintenance. Protection class IP 54. Operating temperature range: -20…+60 °C. The device is equipped with a potentiometer for shaft position feedback and three switches included. Synchronous motor protected against stall. Simple adjustment.