AR 450E4 sileo Axial fan

Item Number: 37385

speed controllable by voltage reduction, plus option of 2-step operation by D/Y switching for 400V versions

safe and maintenance free operation

can be installed in any mounting position

electric connection via terminal box mounted on the casing

Axial fans of the AR sileo range do have a bionic shape of the fan blade, and are driven by external rotor motors. The AR range is mounted in a round casing according Eurovent 1/2, galvanized steel and powder coated in black (RAL9005). The axial impeller is manufactured from black high efficiency composite material. The impeller is balanced dynamically in two levels in accordance with DIN ISO 1940 part 1, quality G6.3.

The motors are equipped with thermal contacts for motor protection, with leads to be connected to a motor protection unit.


Ecodesign 327
Manufacturer Systemair GmbH, Seehöfer Str. 45, DE-97944 Boxberg, Amtsgericht (court of registration) Mannheim, HRB 560437
Type AR 450E4
Year of manufacture See name plate of the fan
Air flow qv 1.3903 m³/s
Efficiency category static
Efficiency grade N 41.8
Efficiency grade target N 40
Speed (rpm) n 1,398 r.p.m.
Pressure increase total psf 140 Pa
Power consumption Ped 590 W
Overall efficiency 34 %
Variable speed drive No
Additional components Components used to calculate the energy efficiency that are not apparent from the measurement category are detailed in the CE declaration.
Maintenance Information on installation, operation and mainenance is provided in the operating instructions.
Recycling / disposal Information on recycling and disposal is provided in the operating instructions.

Technical parameters

Norminal data
Voltage (Nominal) 230 V
Frequency 50 Hz
Phase(s) 1~
Input power 600 W
Input current 2.9 A
Impeller speed 1,390 r.p.m.
Air flow max 2.028 m³/s
Air flow at max. efficiency 1.39 m³/s
Specific ratio 1,000000
Capacitance of capacitor 14 µF
Temperature of transported air max 70 °C
Max temperature of transported air, when speed controlled 70 °C
Sound data
Sound pressure level at 1m 66 dB(A)
Enclosure class, motor IP54
Insulation class F
Data according to ErP
ErP ready ErP 2018
Measurement category A
Efficiency grade 41.8 Ƞactual
Efficiency, static 34 ȠstatA
Target efficiency grade ErP2013 36 Ƞtarget2013
Target efficiency grade ErP2015 40 Ƞtarget2015
Dimensions and weights
Duct dimension; Circular, inlet 450 mm
Duct dimension; Circular, outlet 450 mm
Weight 17 kg
Duct connection type Circular
Color name, casing Black
Motor type AC





z x Ød

AR 450 sileo





8 x Ø12


The box is made up of electroplated steel- plate witch is powder coated. A protection guard is included. The fan can be installed in each fitting position. The axial impeller with airfoil made of aluminum and is coated black. The actuation is carried out by a maintenance- free, speed- controlled external rotor motor. The fan is speed- controllable by a thyristor or a transformer alternatively at a 400V- Construction a 2- stepped operation trough a D/Y- Connection is also possible. For protecting the motor integrated thermostat relays with completed lines to a motor protection device are built in. For annealing the motor is situated in the air flow. Impeller according to VDI 2060, quality category Q6,3 and dynamically weigh heavy in to levels

EV-AR/AXC 450 flex.conn. 70°C Item Number: 8355 EV-AR/AXC 450 flex.conn. 70°C .
GFL-AR/AXC 450 counter flange Item Number: 8379 GFL-AR/AXC 450 counter flange .
MFA-AXC/AM 450 mounting foot Item Number: 311286 MFA-AXC/AM 450 mounting foot .
REE 4 Speed control Item Number: 5317 REE 4 Speed control .
REU 5 Speed control Item Number: 5006 REU 5 Speed control .
REV-5POL/05 ON/OFF Item Number: 33979 REV-5POL/05 ON/OFF .
RTRE 5 Speed control Item Number: 5010 RTRE 5 Speed control .
S-ET 10 Motor Protection Item Number: 5154 S-ET 10 Motor Protection .
STL 5 Speed controller Item Number: 84271 STL 5 Speed controller .