Ziehl-Abegg impeller sizes in front of frequency inverter panel

Photo: Mariusz Młynarczyk / CloudAir.tech

Blue centrifugal impellers from small to large are lined up on a glossy blue counter at Ziehl-Abegg. Behind them a white axial duct fan and a panel reading "Frequency inverter with integrated allpole sinefilter" complete the display.