This product is discontinued
ECOM Symbol


Square Duct Fan

Item Number: 1316


Integral thermal contacts

Can be installed in any positions

Maintenance-free and reliable

KDRE/KDRD fans have an external rotor motor with a mixed flow type impeller. The KDRE/KDRD series is notable for its relatively high static pressure and high level of efficiency. The casing is manufactured from galvanised sheet steel.

To protect the motor from overheating, the KDRE/KDRD fans have integral thermal contacts with leads for connection to a motor protection device.

The fans can be installed in any position and are easy to connect using the DS flexible connections.


Trade name Systemair
Product name KDRD 55 Square Duct Fan
ErP compliance 2016
Unit category NRVU
Drive External MSD or VSD
Unit type UVU
Heat recovery type None
Temperature ratio (UVU) Not applicable
qv nom 0,9353 m³/s
P nom 0,722 kW
Ps nom 275 Pa
Fan efficiency 36 %
External Leakage 5 %
Sound power level LWA 53 dB(A)

Technical parameters

Norminal data
Voltage (nominal) 400 V
Frequency 50 Hz
Phase(s) 3~
Input power 789 W
Input current 1,52 A
Impeller speed 1.315 r.p.m.
Air flow 6,732 m³/h
Temperature of transported air 49 °C
Max temperature of transported air, when speed controlled 40 °C
Sound data
Sound pressure level at 3m (20m² Sabin) 55 dB(A)
Enclosure class, motor IP54
Insulation class F
Data according to ErP
ErP ready ErP 2016
Dimensions and weights
Rectangular, height, inlet 550 x 550 mm
Rectangular, width, inlet 550 x 550 mm
Rectangular, height, outlet 550 x 550 mm
Rectangular, width, outlet 550 x 550 mm
Weight 38 kg
Duct connection type Square
Motor type AC
REV-5POL/07 ON/OFF - Systemair Item Number: 33980 REV-5POL/07 ON/OFF

Servisni prekidač

RTRD 2 regulator brzine - Systemair Item Number: 5941 RTRD 2 regulator brzine

Manuelni petostepeni transformator sa zaštitom el.motora

RTRDU 2 regulator brzine - Systemair Item Number: 5945 RTRDU 2 regulator brzine

Man. petostepeni transf. sa zaštit. motora, 2 režima brzina

Safety switch 3-pole grey - Systemair Item Number: 210680 Safety switch 3-pole grey


RBK 55/33 400V/3 - Systemair Item Number: 5448 RBK 55/33 400V/3

Kanalski grejač

VBK 55 izmenjivač toplote - Systemair Item Number: 6174 VBK 55 izmenjivač toplote

Vodeni grejač

DSK 55 - Systemair Item Number: 5103 DSK 55

Fleksibilna veza za kvadratne kanale

FFS 55 filterska kaseta - Systemair Item Number: 5082 FFS 55 filterska kaseta .
LDK 55 prigušivač - Systemair Item Number: 5116 LDK 55 prigušivač