AC Axial Fans
Browse by size
Browse by series
| Model | Size | Max airflowm³/h | Max static pressurePa | PowerW | NoisedB(A) | Speedrpm | VoltageV | ||
|---|---|---|---|---|---|---|---|---|---|
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LWAA2E300S-5MEW-08AC | Ø300 mm | 3,502 | see curve | 400 | 73 | 3,000 | 220 | Details |
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LWAA2E300S-5MEW-14AC | Ø300 mm | 2,575 | see curve | 180 | 60 | 2,300 | 220 | Details |
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LWAA4D250S-7MEB-07AC | Ø250 mm | 979 | see curve | 100 | 53 | 1,400 | 380 | Details |
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LWAA4D250S-7MEB-08AC | Ø250 mm | 1,133 | see curve | 100 | 54 | 1,650 | 380 | Details |
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LWAA4D295S-5PNW-03AC | Ø295 mm | 1,803 | see curve | 75 | 49 | 1,330 | 380 | Details |
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LWAA4D295S-5PNW-04AC | Ø295 mm | 2,009 | see curve | 90 | 50 | 1,450 | 380 | Details |
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LWAA4D300S-5MEB-03AC | Ø300 mm | 1,803 | see curve | 90 | 52 | 1,380 | 380 | Details |
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LWAA4D300S-5MEB-04AC | Ø300 mm | 2,060 | see curve | 120 | 55 | 1,640 | 380 | Details |
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LWAA4D350S-5MEB-03AC | Ø350 mm | 2,781 | see curve | 135 | 58 | 1,360 | 380 | Details |
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LWAA4D350S-5MEB-04AC | Ø350 mm | 2,575 | see curve | 180 | 67 | 1,500 | 380 | Details |
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LWAA4D350S-5MEB-11AC | Ø350 mm | 3,348 | see curve | 155 | 55 | 1,350 | 380 | Details |
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LWAA4D350S-5MEB-12AC | Ø350 mm | 3,760 | see curve | 200 | 58 | 1,500 | 380 | Details |
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LWAA4D350S-5MEW-18AC | Ø350 mm | 2,575 | see curve | 150 | — | 1,400 | 380 | Details |
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LWAA4D350S-5MKB-15AC | Ø350 mm | 3,348 | see curve | 155 | 55 | 1,350 | 380 | Details |
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LWAA4D350S-5MKB-16AC | Ø350 mm | 2,987 | see curve | 180 | 65 | 1,500 | 480 | Details |
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LWAA4D400S-5MEB-03AC | Ø400 mm | 3,811 | see curve | 180 | 60 | 1,370 | 380 | Details |
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LWAA4D400S-5MEB-04AC | Ø400 mm | 4,223 | see curve | 240 | 62 | 1,620 | 380 | Details |
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LWAA4D400S-5MEB-11AC | Ø400 mm | 4,532 | see curve | 230 | 62 | 1,350 | 380 | Details |
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LWAA4D400S-5MEB-12AC | Ø400 mm | 5,150 | see curve | 280 | 64 | 1,600 | 380 | Details |
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LWAA4D400S-5MEB-15AC | Ø400 mm | 4,429 | see curve | 225 | 58 | 1,380 | 380/400 | Details |
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LWAA4D400S-5MEB-16AC | Ø400 mm | 4,893 | see curve | 310 | 60 | 1,400 | 380/400 | Details |
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LWAA4D400S-5MEW-22AC | Ø400 mm | 4,069 | see curve | 180 | 66 | 1,400 | 380 | Details |
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LWAA4D400S-5MKB-19AC | Ø400 mm | 4,429 | see curve | 225 | 58 | 1,380 | 380 | Details |
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LWAA4D400S-5MKB-20AC | Ø400 mm | 4,069 | see curve | 180 | 60 | 1,400 | 380 | Details |
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LWAA4D420S-5MEB-03AC | Ø420 mm | 5,459 | see curve | 280 | 65 | 1,370 | 380 | Details |
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LWAA4D420S-5MEB-04AC | Ø420 mm | 5,974 | see curve | 380 | 68 | 1,600 | 380 | Details |
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LWAA4D450S-5MEB-03AC | Ø450 mm | 4,635 | see curve | 250 | 62 | 1,350 | 380 | Details |
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LWAA4D450S-5MEB-04AC | Ø450 mm | 4,944 | see curve | 280 | 64 | 1,600 | 380 | Details |
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LWAA4D450S-5MEB-10AC | Ø450 mm | 7,004 | see curve | 480 | 66 | 1,350 | 380 | Details |
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LWAA4D450S-5MEB-12AC | Ø450 mm | 5,768 | see curve | 380 | 64 | 1,350 | 380 | Details |
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LWAA4D450S-5MEB-16AC | Ø450 mm | 5,150 | see curve | 270 | 58 | 1,350 | 380 | Details |
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LWAA4D450S-5MEB-17AC | Ø450 mm | 7,725 | see curve | 730 | 72 | 1,540 | 380 | Details |
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LWAA4D450S-5MEW-23AC | Ø450 mm | 5,562 | see curve | 280 | — | 1,390 | 380 | Details |
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LWAA4D450S-5MKB-20AC | Ø450 mm | 5,459 | see curve | 270 | 58 | 1,350 | 380 | Details |
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LWAA4D450S-5MKB-21AC | Ø450 mm | 5,665 | see curve | 330 | 60 | 1,400 | 380 | Details |
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LWAA4D500S-5MEB-03AC | Ø500 mm | 6,695 | see curve | 420 | 69 | 1,350 | 380 | Details |
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LWAA4D500S-5MEB-04AC | Ø500 mm | 7,004 | see curve | 500 | 70 | 1,500 | 380 | Details |
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LWAA4D500S-5MEB-10AC | Ø500 mm | 9,270 | see curve | 750 | 80 | 1,350 | 380 | Details |
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LWAA4D500S-5MEW-12AC | Ø500 mm | 7,519 | see curve | 450 | 69 | 1,390 | 380 | Details |
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LWAA4D500S-5MEW-13AC | Ø500 mm | 7,931 | see curve | 450 | 70 | 1,390 | 380 | Details |
AC Axial Fans — selection guide
AC Axial Fans: 203 models, impellers Ø145–910 mm, maximum airflow 268–31,106 m³/h, static pressure to 391 Pa, AC motors, across 54 series. 1 of them carry a measured P-Q curve and 201 a dimensional drawing.
LWAA AC axial fans are external-rotor fans for fixed-speed duties from Ø145 to Ø910 mm. The code tells the configuration: LWAA4E400S-5MEW is a 4-pole single-phase (E; D = three-phase) Ø400 mm fan. Pole count sets the speed and therefore the pressure and noise: 2-pole for the small Ø145–250 mm sizes, 4-pole for Ø250–550 mm, 6- and 8-pole for the large Ø600–910 mm fans. Supply is 220 / 230 V single-phase or 380 / 400 V three-phase, with 60 Hz and 480 V variants on some sizes.
Most models are IP54, rated −30 to +60 °C, with cold-rolled-steel impellers and maintenance-free ball bearings. Because no electronics are involved, these are the fans specified where the duty is constant and first cost decides — condensers, dry coolers and simple ventilation.
How to select from this range
- Pick the diameter for airflow and the pole count for pressure: at the same Ø450 mm a 4-pole fan delivers roughly twice the airflow of a 6-pole fan at about 6 dB(A) more noise.
- Choose single-phase (E) for equipment sold to end users and three-phase (D) for plant with a 380 / 400 V supply.
- Use the coil pressure drop, not free-air airflow, when reading the curve.
- Voltage-controllable versions allow simple step control; for continuous modulation move to the EC line on the same mounting dimensions.
Where these fans are used
- Condensers and dry coolers
- Cold-room evaporators
- Heat-pump outdoor units
- Wall and roof ventilation
Every figure above is measured on our own test rigs per AMCA 210 / ISO 5801 methods — see the test labs and certificates. Final selection is confirmed at the duty point and by project validation.
FAQ — AC Axial Fans
What is the difference between E and D in the LWAA code?
E is single-phase 220 / 230 V, D is three-phase 380 / 400 V. Both use the same impeller and mounting, so a unit can be offered in either supply without re-tooling.
Which LWAA sizes have the most variants?
Ø400 and Ø450 mm (LWAA4E400 / 4D400 / 4E450 / 4D450) with 9–13 versions each, followed by Ø250 and Ø350 mm — these are the condenser and heat-pump sizes that ship fastest.
Can AC axial fans be speed-controlled?
Voltage control (transformer or triac) works on many single-phase sizes with reduced airflow; for proportional control, feedback and part-load efficiency use the LWAE3G EC fan of the same diameter.