ventilators: harmann: duct fans
Harmann RM
Radial duct fan
RM fan housing is made of pressed galvanized steel sheet and epoxy painted gray (RAL 7035). It has standardized connection nozzles with a negative tolerance (nipple) for connecting in the system of round ventilation ducts. A junction box is attached to the housing.
The RM fans are fitted with a dynamically balanced impeller type B, which is an integral part of the engine (so-called motor with a rotating casing). Shoulders leaning back are made of plastic.
The drive in RM fans is realized by an asynchronic 230 V, 50 Hz electric motor with a rotating casing. The motors have integrated thermal protection and are adapted to voltage speed control in the range from 80 to 230V (models 100/200 and 125/300 in the range from 140 to 230V).
RM radial fans are used in general ventilation of residential, office, industrial or public utility buildings, but also as soldering and welding gas leaks, supply elements in supply air handling units, in hydroponic plant ventilation, are also suitable for cooperation with heat exchangers in dispersed installations with recuperation or air heat pump.
Maximum working temperature: 50-80 ° C depending on the model
| Type | A [mm] |
B [mm] |
Ød [mm] |
ØD [mm] |
| RM 100/200 | 287,35±2 | 208,5±1 | 99 | 245±1 |
| RM 100/250 | 287,35±2 | 208,5±1 | 99 | 245±1 |
| RM 125/300 | 287,35±2 | 193±1 | 124 | 245±1 |
| RM 125/350 | 287,35±2 | 193±1 | 124 | 245±1 |
| RM 150/450 | 312±2 | 191±1 | 149 | 270±1 |
| RM 150/650 | 386,35±2 | 228,5±1 | 149 | 344±1 |
| RM 160/450 | 312,35±2 | 208±1 | 159 | 270±1 |
| RM 160/700 | 386,35±2 | 228,5±1 | 159 | 344±1 |
| RM 200/800 | 386,35±2 | 226,5±1 | 199 | 344±1 |
| RM 250/900 | 386,35±2 | 235,4±1 | 249 | 344±1 |
| Type | Vmax [m3/h] |
Δpmax [Pa] |
Pmax [W] |
U [V] |
Imax [A] |
RPMmax [1/min] |
tmax [°C] |
LWA [dB(A)] |
LpA [dB(A)] |
m [kg] |
| RM 100/200 | 190 | 340 | 54 | 230 | 0,3 | 2680 | 80 | 55 | 48 | 2,8 |
| RM 100/250 | 250 | 360 | 68 | 230 | 0,3 | 2750 | 60 | 56 | 49 | 2,7 |
| RM 125/300 | 300 | 331 | 55 | 230 | 0,3 | 2635 | 80 | 55 | 48 | 2,6 |
| RM 125/350 | 340 | 353 | 67 | 230 | 0,3 | 2730 | 65 | 56 | 49 | 2,6 |
| RM 150/450 | 470 | 346 | 67 | 230 | 0,3 | 2710 | 60 | 52 | 45 | 2,9 |
| RM 150/650 | 630 | 440 | 93 | 230 | 0,4 | 2710 | 65 | 56 | 49 | 4,0 |
| RM 160/450 | 450 | 350 | 69 | 230 | 0,3 | 2690 | 50 | 52 | 45 | 3,0 |
| RM 160/700 | 690 | 430 | 94 | 230 | 0,4 | 2650 | 65 | 57 | 50 | 4,2 |
| RM 200/800 | 810 | 460 | 100 | 230 | 0,5 | 2720 | 70 | 56 | 49 | 4,2 |
| RM 250/900 | 890 | 480 | 100 | 230 | 0,5 | 2720 | 60 | 58 | 51 | 4,3 |
