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The SQN75.294A21B has a wide range of operating times, from 4.5 seconds to 120 seconds, and can flexibly adapt to different application requirements. Its core component is a bidirectional rotating synchronous drive motor, which achieves precise adjustment of the damper through precise cam control and reliable gear clutch. This design not only ensures the accuracy of control, but also greatly improves the reliability of execution.
For the convenience of user use and monitoring, the SQN75.294A21B is equipped with internal and external position indication functions, so that users can clearly understand the current position status of the damper. At the same time, the easy-to-adjust terminal and auxiliary switch design further enhances the convenience of operation.
The SQN75.294A21B servo motor has two rotation directions to choose from: counterclockwise rotation (SQN75.294A21B) and clockwise rotation (SQN75). Both models have a holding torque of 0.7 - 1.3 Nm, ensuring sufficient output torque to meet the needs of various working conditions.
In terms of control systems, the SQN75.294A21B can be easily connected to P-PI or PID controllers to achieve more advanced control strategies. In addition, it can also be directly connected to different types of combustion controllers, simplifying system design and reducing installation and maintenance costs.
In short, the Siemens SQN75.294A21B servo motor provides a perfect solution for the damper control of small and medium-sized oil or gas burners with its excellent performance, flexible control and convenient operation, and is an ideal choice in the field of industrial combustion control.
| Model | Siemens SQN75.294A21B |
| Operating voltage | 220-240 V |
| Frequency | 50 Hz |
| Running time (90°) | 12 s |
| Running torque (max) | Normal torque 1.5 Nm, holding torque 0.7 Nm, maximum up to 2.5 Nm |
| Holding torque | 1.2 Nm |
| Relays | 2 Pcs |
| Additional switches | 2 Pcs |
| Drive shaft type | 1 |
Combustion equipment: In combustion equipment such as boilers, hot air furnaces, and industrial kilns, Siemens SQN75.294A21B is the core of automated control, ensuring full combustion of fuel and safe operation of equipment.
HVAC system: In the HVAC system of large buildings or industrial plants, SQN75.294A21B is used to adjust air flow and temperature, optimize system energy consumption, and improve the comfort of the indoor environment.
Environmental protection equipment: In exhaust gas treatment equipment, Siemens SQN75.294A21B accurately controls the damper opening, maximizes exhaust gas treatment efficiency, and helps companies achieve environmental protection goals.
Chemical and energy industry: In heating furnaces, reactors and other equipment in chemical production, as well as gas turbines and steam generators in the energy industry, SQN75.294A21B servo motors, as key actuators, ensure the safe and stable operation of equipment and play a vital role.
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