centrifugal fan / duct / commercial / steel
Min.: 0 m³/h (0 ft³/h)
Max.: 28,000 m³/h (988,810.7 ft³/h)
flow rates up to 28,000 m³/h
size: 225 - 560 mm (impeller diameter)
asynchronous external rotor motor
backward curved impellers
feet can be offset by 90°
protection class IP54
thermal class F
connection cable on side
motor protection by thermal contacts
speed is variable using auto transformers
Casings are made of galvanised sheet steel. Side parts and the spiral-shaped guide plate are connected with rivets. In the side panels, there are holes for the fixing of the feet, which can be implemented by 90°.
up to size 400
casing in spiral design
from size 450
casing in rectangular form
model - EHA
single inlet design (E)
model - DHA
double-sided inlet design (D)
The backward curved aluminium impellers are mounted directly on the rotors of the external rotor motors and are dynamically balanced on two levels with the rotor according to quality level G2.5 as per DIN ISO 1940.
The motors are fitted with an outgoing cable. The electrical connection is made via an IP44 terminal box which is supplied loose.