This product is discontinued

X-DVV 800D6-8-K/120°C+REV

Item Number: 3640

Motor outside of the air stream

Max temperature of transported air 120°C

Vertical exhaust

Suitable for coastal applications

Wide range of accessories

Service switch serial

The octagonal casing is manufactured from seawater resistant aluminium. The base frame consist of galvanised steel. The impeller with backward-curved blades is also manufactured from galvanised steel.

The fan is equipped with IEC flange electric motor with degree of mechanical protection IP 55, insulation class F. Two speed motors as Dahlander (4-8, 6-12) or with separate windings (6-8, 4-6, 8-12). Motor cooling with fresh air via air duct. Thermal motor protection (PTC) serial built-in. For smaller two speed fans (up to 10A) two speed switch is available as accessories (in this case thermal contact must be ordered; not suitable for PTC or without thermal contact). Connection the fan to the mains in service switch. EMC protected cables, cable glands or service switches on request.

On request the fan can be factory fitted with sound attenuator on outlet as DVVI/120 fan. Sound attenuators are also available as HSDV accessories.

Note (for EU market only): not affected by efficiency provisions of Commission Regulation (EU) No 327/2011 - exception 3 (c) (i) (a).

Technical parameters

Norminal data
Voltage (nominal) 400 V
Frequency 50 Hz
Phase(s) 3~
Motor circuit connection Y
Input power 3,740 W
Starting current 27.7 A
Input current 6 A
Impeller speed 965 r.p.m.
Air flow max 5,000 L/s
Temperature of transported air max 120 °C
Sound data
Sound pressure level at 10m (free field) 60 dB(A)
Sound pressure level at 4m (free field) 66 dB(A)
Enclosure class, motor IP55
Insulation class F
Dimensions and weights
Duct dimension; Circular, inlet 630 mm
Duct dimension; Circular, outlet 630 mm
Weight 169 kg
Duct connection type Circular
Motor type AC

Roof fan, vertical discharge.


Octagonal casing and motor encapsulation made of seawater resistant aluminium, insulated, with bird protection grid.


Inlet nozzle made of galvanised steel sheet.


The air stream is carried out through annular space between the casing and the motor housing.


The fan has an electroplated backward curved radial impeller made of steel sheet, single inlet. With hub and secured bolted joint directly assembled on the motor shaft. Impeller acc. to VDI 2060, balancing quality Q 6.3, dynamically balanced acc. to ISO 1940 T1.


Internal rotor motor, IEC with flange, 2-speed, separated, pole changing windings. Motor cooling with an insulated fresh air duct, negative pressure system.


Suitable for medium temperatures up to 120 °C. Motor protection on site.


Terminal box (IP55) on the casing.


For outdoor installation above heated rooms.


Vertical installation position.


Snow load class 0.


Flange connection


according to DIN 24154R3.


DIBt approval, certificate available


ASFV G630 flange - Systemair Item Number: 3702 ASFV G630 flange .
S-DT2GKT Two speed switch Y/Y - Systemair Item Number: 2699 S-DT2GKT Two speed switch Y/Y .