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Centrifugal fans , backward curved

EC Centrifugal fans ; backward curved (Type: EHAG...)

Properties

  • flow rates up to 13,400 m³/h
  • size: 225 - 560 mm (impeller diameter)
  • highly efficient EC technology
  • compact design
  • backward curved impellers
  • feet can be offset by 90°
  • variable discharge direction
  • integrated control system (EC controller)
  • speed is 100% infinitely variable

» Design and Downloads

Casing

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

Impellers

The 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.

Electrical connection

The motors are fitted with an outgoing cable. The electrical connection is made via an IP44 terminal box which is supplied loose.

Downloads

Operating manual: Fans with EC-drives (BA044) Operating manual: Fans with EC-drives (BA044)

File format: .pdf

Filesize: 5.08 MB


Centrifugal fans ; backward curved (Type: E/DHA...)

Properties

  • 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

» Design and Downloads

Casing

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)

Impellers

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.

Electrical connection

The motors are fitted with an outgoing cable. The electrical connection is made via an IP44 terminal box which is supplied loose.

Downloads

Catalogue: World of fans (Standard fans) Catalogue: World of fans (Standard fans)

File format: .pdf

Filesize: 19.66 MB

Operating manual: Fans with AC-drives (BA045) Operating manual: Fans with AC-drives (BA045)

File format: .pdf

Filesize: 1.29 MB


Centrifugal fans with IEC standard motor ; backward curved (Type: EHN...)

Properties

  • flow rates up to 21,000 m³/h
  • size: 200 - 630 mm (impeller diameter)
  • casing made of galvanised sheet steel
  • casing position: LG or RD
  • IEC standard motor, IP55, thermal class F
  • backward curved impellers
  • terminal box directly on motor, IP55
  • motor protection through PTC thermistors

» Design and Downloads

Casing

The casing is made of galvanised sheet steel. The side parts and the spiral plate are connected to each other by rivets. With size 200, the motors are flange-mounted directly. From size 225, the motors are mounted on a console. A plastic coating is available upon request.

Impellers

The impellers of the EHN ... types are produced with backward curved blades made entirely of aluminium. The inlet cones made of galvanised sheet steel are screwed into the casing. The impellers together with the impeller hub are dynamically balanced at two levels according to quality level G2.5 as per DIN ISO1940.

Electrical connection

The electrical connection is made through the terminal box on the motor in protection class IP55.

Downloads

Catalogue: World of fans (Standard fans) Catalogue: World of fans (Standard fans)

File format: .pdf

Filesize: 19.66 MB