Circular casing with Eurovent 1/2 compliant flanges made from galvanised steel. Sizes 200-630 include a protection guard on the intake side, black powder coated. Protection guards for the 710-1000 sizes are available as an accessory.
Voltage controllable external rotor motors.
Free running axial impeller made from black high-performance composite material (sizes 200-450K) or aluminium (sizes 450-1000), with bionically designed blade geometry.
Speed controllable via voltage reduction using a transformer or thyristor. Star-delta operation is possible for 3~/400 V types.
Integrated thermal contacts with cables for connection to a motor protection switching device.