The fan housing is made of high-quality and robust AB plastic. Airtight assembly box. Emphasis external runner engine with radial ripening and bubble curved backwards. The engine has integrated overheating protection with automatic provision. The ball bearings ensure a long lifespan of the engine and are designed for 40,000 operating hours. To achieve the exact technical parameters, as well as low -noise and reliable operation, each impeller is dynamically balanced during production. Motor protection type: IP 44. Stepless or gradual speed control via a Thyristor or Trafo speed controller. When connecting several fans, it should be noted that the maximum current and power consumption of the speed controller is not exceeded. Fans for pipeline installation in the ventilation tube with a corre.
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