The axial fans of the QCM-ATX series are manufactured and certified according to the Atex Directive 2014/34/EU. The motor is equipped with an overtemperature protection system using PTC thermistors, compliant with DIN 44081, DIN 44082, and IEC 60034-11-2 standards. It is also suitable for speed control via inverter-type controllers (for the three-phase version).