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The Siemens SQN75.294A21B is internally powered by a bidirectional rotating synchronous drive motor, supplemented by precise cam control and gear clutches. With a stable holding torque of 0.7 - 1.3 Nm, it offers two rotation directions: clockwise and counterclockwise. It is equipped with internal and external position indication functions, as well as easily adjustable terminals and auxiliary switches, making status monitoring and on-site operation more intuitive and convenient.
In terms of system integration, it can seamlessly connect with P-PI or PID and various combustion controllers for direct connection, simplifying the system architecture while reducing installation and maintenance costs.
| 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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