Siemens SQN31.402A1700 actuator

Siemens SQN31.402A1700 actuator — reliable control of burner air damper. Siemens SQN31.402A1700 is a professional air damper actuator from the world leader in burner automation. It provides precise automatic regulation of the fuel-air mixture composition, ensuring economical and safe burner operation in any mode. Application: The actuator moves the air damper during automatic regulation of the burned fuel mixture composition and is installed in medium- and low-power gas and liquid fuel burners. It is compatible with P-PI or PID controllers and LOA/LMO/LMG/LFL burner automation units — easily integrating into existing boiler and burner automation systems without replacing the controller. Key technical specifications: The actuator provides a 90° rotation angle in 30 seconds, torque 3 Nm, equipped with 3 auxiliary switches, housing height 125 mm, power supply AC 110 V. Power consumption: 6.5 VA, weight: 0.8 kg, protection class: IP 40. Design features: The actuator has an enlarged housing specifically designed for installing a potentiometer (optional). The drive shaft is made of wear-resistant steel. The synchronous motor is protected against blocking. The gearbox is maintenance-free with a disengagement feature. End and auxiliary switches are easily adjustable for precise switching point setting. The polymer housing protects the working unit from impacts, external influences, and heat. Operating temperature range: -20 to +60 °C. Why choose Siemens SQN31.402A1700: • German production Siemens AG — guarantee of quality and durability • Precise damper positioning — optimal fuel combustion and energy savings • Enlarged housing — optional