ventilators: harmann: duct fans
Harmann ML PRO EC
Diagonal duct fan with energy-saving motor (EC)
A characteristic feature of the ML PRO EC fan is its specially profiled diagonal rotor, made of plastic, dynamically balanced in two planes (G6., DIN ISO 1940)
The housing is made of high quality PPGF30 (polypropylene with 30% glass fiber), resistant to corrosion and weather conditions.
The device consists of three main parts: base plate, motor rotor assembly with integrated connection box, connecting sockets.
The whole is connected by means of two hinged mounting clips. Thanks to this construction, the fans can be installed in any position. Cleaning and maintenance are also facilitated, as access to all elements does not require disassembly of ventilation ducts.
ML PRO EC fans are equipped with energy-saving electronically commutated electric motors with integrated controller and thermal protection. Thanks to this solution, ML PRO EC is characterized by low energy consumption, smooth and precise speed control in the full range (while maintaining high efficiency), soft start and quiet operation. The speed is changed by connecting a potentiometer or other controller using the analog 0-10V signal.
Degree of protection for the device: IPX4
The degree of protection of the junction box: IP44
Insulation class: F
The most important features:
– diagonal rotor
– energy-saving motor (EC)
– maximum working temperature: 35-70 ° C (depending on the model)
– motor with integrated controller and thermal protection
– available in 8 models from 150 to 355 mm
– easy installation and maintenance thanks to mounting on two hinged clamps
– efficiency up to 3320 m3 / h
| Type | A [mm] |
B [mm] |
C [mm] |
Ød [mm] |
ØD [mm] |
E [mm] |
F [mm] |
G [mm] |
H [mm] |
I [mm] |
| ML PRO 150/750 EC | 238,5 | 137,7 | 210,1 | 149,0 | 204,0 | 4 x 5 | 309,0 | 25,0 | 94,0 | 100,0 |
| ML PRO 160/800 EC | 238,5 | 137,7 | 210,1 | 149,0 | 204,0 | 4 x 5 | 289,0 | 25,0 | 94,0 | 100,0 |
| ML PRO 200/1300 EC | 280,2 | 163,0 | 252,0 | 199,0 | 245,8 | 4 x 5 | 325,0 | 25,0 | 120,0 | 125,0 |
| ML PRO 250/1700 EC | 299,4 | 169,7 | 268,0 | 248,9 | 263,4 | 4 x 5 | 215,0 | 25,0 | 80,0 | 125,0 |
| ML PRO 250/2100 EC | 299,4 | 169,7 | 268,0 | 248,9 | 263,4 | 4 x 5 | 215,0 | 25,0 | 80,0 | 125,0 |
| ML PRO 280/2400 EC | 327,6 | 258,3 | 295,6 | 274,3 | 292,3 | 4 x 9 | 280,0 | 29,6 | 195,0 | 234,0 |
| ML PRO 315/2900 EC | 366,4 | 284,1 | 330,2 | 313,9 | 327,3 | 4 x 9 | 300,0 | 29,7 | 210,0 | 264,0 |
| ML PRO 355/3300 EC | 407,0 | 316,0 | 370,7 | 353,8 | 367,2 | 4 x 9 | 325,0 | 49,7 | 200,0 | 295,0 |
| Type | Vmax [m3/h] |
Δpmax [Pa] |
Pmax [W] |
Un/Uster. [V] / [V] |
Imax [A] |
RPMmax [1/min] |
LWA [dB(A)] |
LpA [dB(A)] |
tmax [°C] |
m [kg] |
| ML PRO 150/750 EC | 780 | 420 | 67 | 230,1~/0-10 | 0,60 | 3790 | 56 | 49 | 45 | 2,4 |
| ML PRO 160/800 EC | 810 | 430 | 73 | 230,1~/0-10 | 0,65 | 3730 | 55 | 48 | 45 | 2,6 |
| ML PRO 200/1300 EC | 1300 | 440 | 121 | 230,1~/0-10 | 1,00 | 2970 | 62 | 55 | 45 | 3,2 |
| ML PRO 250/1700 EC | 1780 | 510 | 179 | 230,1~/0-10 | 1,49 | 3110 | 66 | 59 | 45 | 5,7 |
| ML PRO 250/2100 EC | 2175 | 770 | 304 | 230,1~/0-10 | 2,10 | 3700 | 67 | 60 | 45 | 4,0 |
| ML PRO 280/2400 EC | 2440 | 630 | 267 | 230,1~/0-10 | 1,86 | 3170 | 75 | 68 | 45 | 5,5 |
| ML PRO 315/2900 EC | 2960 | 600 | 282 | 230,1~/0-10 | 1,96 | 2800 | 69 | 61 | 70 | 6,8 |
| ML PRO 355/3300 EC | 3320 | 450 | 261 | 230,1~/0-10 | 1,82 | 2170 | 63 | 56 | 35 | 8,7 |
