Helical fans with square base Fans with encapsulated ball bearings, 4-pole, equipped with a yellow chrome-plated protective grille located on the inlet side.
The helix is made of galvanised steel with a black paint coating.
The fans are produced with a single-phase external rotor with phase-shifting rings (WS) or capacitor (WE).
WE versions are supplied with a capacitor whereas W4S versions do not require a capacitor.
Applications: air conditioning, air renewal and cooling of electrical and electronic equipment.