This product is discontinued

KVO 355

Kanalski ventilator u izolovanoj kutiji, kružni kanal

Item Number: 2030


Integral thermal contacts

Low noise level

Compact construction

The KVO 355-400 models have a single-inlet centrifugal fan with forward-curved blades and a maintenance-free external rotor motor. In all KVO models, the motor and impeller are mounted on the cover for easy cleaning and maintenance. To protect the motor from overheating, the fans have integral thermal contacts with external leads for connection to a motor protection device. The fans can be installed in any position, and are easy to connect to spiral ducts using FK mounting clamps. The lid is insulated with 40 mm rockwool. The casing is manufactured from galvanised sheet steel.

Technical parameters

Norminal data
Voltage (nominal) 230 V
Frequency 50 Hz
Phase(s) 1~
Input power 1.196 W
Input current 5,69 A
Impeller speed 1.118 r.p.m.
Air flow 3,175 m³/h
Capacitance of capacitor 20 µF
Temperature of transported air 65 °C
Max temperature of transported air, when speed controlled 65 °C
Sound data
Sound pressure level at 3m (20m² Sabin) 53 dB(A)
Enclosure class, motor IP54
Insulation class F
Dimensions and weights
Duct dimension; Circular, inlet 355 mm
Duct dimension; Circular, outlet 355 mm
Weight 38,3 kg
Duct connection type Circular
Motor type AC

KVO 355 Circular duct fan


DN 355, 230V/50Hz, 1~, sound insulated


Centrifugal circular duct fan designed for easy and direct installation in ducts, single inlet.


Single skin, galvanised sheet steel housing. Double wall cover, mineral wool insulation 40 mm, removable incl. fan unit for cleaning and maintenance.


Forward curved centrifugal impeller made of plastic. Impeller acc. to VDI 2060, balancing quality G 6.3, dynamically balanced in two planes.


Voltage controllable external rotor motor


(IP44), maintenance-free, the motor is placed inside the air flow for cooling. Integral thermal contacts with leads to a motor protection device. Speed-controlled by voltage reduction via transformer or thyristor. Equipped with a supply cable, length=1.80m.


For extract and supply air.


Very low installation height.


Installation in any mounting position.


For indoor installation.






Item no.2030


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