Systemair presents DKEX series 355-6 centrifugal fans. The fans have ATEX certification. They provide air flow of between 0.41-1.39 m3/s. Fan impeller is forward-curved and provides a speed of 840 RPM. Power is 1800W, 3-phase, with voltage of 400V and frequency of 50 Hz. Their weight is 40 kg. The fans have Class 'F' insulation.