Siemens SQN70.464A20 actuator

Siemens SQN70.464B20 actuator — reliable control of burner air damper. Siemens SQN70.464B20 is a reversible electric air damper actuator of the SQN70 series, a current version replacing the SQN70.464A20 model. The device provides precise automatic damper positioning during ignition, burner operation at different modes, and combustion chamber purging, maintaining the optimal fuel-to-air ratio for maximum efficiency. Application: Gas and liquid fuel burners of low and medium power. The actuator is used for automatic movement of air and gas dampers to obtain the optimal fuel-air mixture composition. The SQN70 series is used to control gas and air dampers of liquid fuel or gas burners from low to medium power and controls the flow of gas, liquid fuel, or combustion air depending on the load. Main technical specifications: Power supply: 220 V. Torque: 2.5 Nm. Power consumption: 6 VA. Opening time for 90°: 12 seconds. Protection class: IP 40. Weight: 1.2 kg. Opening angle adjustment range: 0…130°. Design features: The SQN70 series features a reliable design in a heat-resistant housing, the ability to connect a potentiometer, easy adjustment of all switch types, and a detachable gearbox. The housing contains a reversible synchronous motor with gear drive, shaft, relays, switches connected to terminals via a printed circuit board. The gear drive can be disengaged by pressing a pin; re-engagement occurs automatically. The drive shaft is made of wear-resistant steel. The housing is heat-resistant and impact-resistant; the presence of end switches and position indication ensure ease of commissioning and operation. Choose Siemens SQN70.464B20: • Current