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AC Axial Fans

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Impeller Ø145–250 mmImpeller Ø145–250 mm43 modelsImpeller Ø295–450 mmImpeller Ø295–450 mm94 modelsImpeller Ø500–800 mmImpeller Ø500–800 mm64 models

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AllLWAA4E40013LWAA4E45011LWAA2E2509LWAA4D4009LWAA4D4509LWAA4E3508LWAA4D3507LWAA4D5007LWAA4E2507LWAA2D2006LWAA4E3006LWAA6D8006LWAA2E3005LWAA6D6305LWAA6D7105LWAA2D2504LWAA2D3004LWAA2E2004LWAA4D5504LWAA4D6304LWAA4E5004LWAA6E6004LWAA4E5503LWAA6E6303LWAA8D7103LWAA2D1452LWAA2D1652LWAA2D1852LWAA2D2302LWAA2E1852LWAA4D2502LWAA4D2952LWAA4D3002LWAA4D4202LWAA4D6002LWAA4D7102LWAA4E2952LWAA4E4202LWAA6D3502LWAA6D4002
Filter by duty point203 models in this category

Filters use nameplate maximum values (max airflow at zero static pressure, max static pressure at zero airflow). Check the actual operating point on the performance curve of each model.

ViewData tableImage grid
ModelSizeMax airflowm³/hMax static pressurePaPowerWNoisedB(A)SpeedrpmVoltageV
LWAA6D550S-5MEB-08 LWAA6D550S-5MEB-08AC Ø550 mm 7,210 see curve 440 66 1,090 380 Details
LWAA6D600S-5MEB-04 LWAA6D600S-5MEB-04AC Ø600 mm 9,785 see curve 500 67 920 380 Details
LWAA6D600S-5MEB-05 LWAA6D600S-5MEB-05AC Ø600 mm 10,197 see curve 650 69 1,070 380 Details
LWAA6D630B-5MKB-12 LWAA6D630B-5MKB-12AC Ø630 mm 11,021 see curve 520 67 900 380/400 Details
LWAA6D630B-5MKB-13 LWAA6D630B-5MKB-13AC Ø630 mm 12,154 see curve 740 69 1,050 380/400 Details
LWAA6D630S-4MKB-10 LWAA6D630S-4MKB-10AC Ø630 mm 10,815 see curve 450 68 925 380 Details
LWAA6D630S-5MEB-04 LWAA6D630S-5MEB-04AC Ø630 mm 11,021 see curve 520 67 900 380 Details
LWAA6D630S-5MEB-05 LWAA6D630S-5MEB-05AC Ø630 mm 10,815 see curve 740 69 1,060 380 Details
LWAA6D710S-5MEW-07 LWAA6D710S-5MEW-07AC Ø710 mm 17,510 see curve 1,200 — 920 380 Details
LWAA6D710S-5MKB-06 LWAA6D710S-5MKB-06AC Ø710 mm 17,510 see curve 645 72.6 960 380 Details
LWAA6D710S-7MEB-01 LWAA6D710S-7MEB-01AC Ø710 mm 17,510 see curve 1,100 75 900 380 Details
LWAA6D710S-7MGB-03 LWAA6D710S-7MGB-03AC Ø710 mm 17,510 see curve 1,100 75 900 380 Details
LWAA6D710S-7MKB-03 LWAA6D710S-7MKB-03AC Ø710 mm 17,510 see curve 1,100 75 900 380/400 Details
LWAA6D800S-5MKB-03 LWAA6D800S-5MKB-03AC Ø800 mm 17,510 see curve 785 65 710 380 Details
LWAA6D800S-5MKB-04 LWAA6D800S-5MKB-04AC Ø800 mm 23,999 see curve 1,780 78.9 920 380 Details
LWAA6D800S-7MEB-01 LWAA6D800S-7MEB-01AC Ø800 mm 24,720 see curve 1,600 80 900 380 Details
LWAA6D800S-7MEB-02 LWAA6D800S-7MEB-02AC Ø800 mm 25,750 see curve 1,850 80 900 380/400 Details
LWAA6D800S-7MEB-05 LWAA6D800S-7MEB-05AC Ø800 mm 20,703 see curve 1,600 — 960 380 Details
LWAA6D800S-7MKB-02 LWAA6D800S-7MKB-02AC Ø800 mm 25,750 see curve 1,850 80 900 380 Details
LWAA6D900S-5MKB-01 LWAA6D900S-5MKB-01AC Ø900 mm 31,106 see curve 2,600 80 940 380 Details
LWAA6D910S-5MEB-03 LWAA6D910S-5MEB-03AC Ø910 mm 26,780 see curve 2,450 — 920 380 Details
LWAA6E350S-5MEB-05 LWAA6E350S-5MEB-05AC Ø350 mm 1,607 see curve 75 53 950 220/230 Details
LWAA6E350S-5MEB-06 LWAA6E350S-5MEB-06AC Ø350 mm 1,854 see curve 83 54 1,100 220/230 Details
LWAA6E400S-5MEB-05 LWAA6E400S-5MEB-05AC Ø400 mm 2,678 see curve 100 49 1,350 220/230 Details
LWAA6E400S-5MEB-06 LWAA6E400S-5MEB-06AC Ø400 mm 3,090 see curve 120 52 1,100 220/230 Details
LWAA6E450S-5MEB-05 LWAA6E450S-5MEB-05AC Ø450 mm 2,987 see curve 135 56 920 220/230 Details
LWAA6E450S-5MEB-06 LWAA6E450S-5MEB-06AC Ø450 mm 3,899 see curve 138 55 920 220/230 Details
LWAA6E500S-5MEB-05 LWAA6E500S-5MEB-05AC Ø500 mm 4,450 see curve 220 65 900 220/230 Details
LWAA6E500S-5MEB-06 LWAA6E500S-5MEB-06AC Ø500 mm 4,944 see curve 250 66 1,020 220/230 Details
LWAA6E550S-5MEB-05 LWAA6E550S-5MEB-05AC Ø550 mm 6,695 see curve 320 62 900 220/230 Details
LWAA6E550S-5MEB-06 LWAA6E550S-5MEB-06AC Ø550 mm 7,210 see curve 465 66 1,060 220/230 Details
LWAA6E600B-5MKB-07 LWAA6E600B-5MKB-07AC Ø600 mm 9,785 see curve 500 67 910 220/230 Details
LWAA6E600B-5MKB-08 LWAA6E600B-5MKB-08AC Ø600 mm 10,197 see curve 640 69 1,080 220/230 Details
LWAA6E600S-5MEB-02 LWAA6E600S-5MEB-02AC Ø600 mm 9,785 see curve 500 67 910 220/230 Details
LWAA6E600S-5MEB-03 LWAA6E600S-5MEB-03AC Ø600 mm 10,197 see curve 640 69 1,080 220/230 Details
LWAA6E630S-4MKB-09 LWAA6E630S-4MKB-09AC Ø630 mm 10,815 see curve 450 68 925 230 Details
LWAA6E630S-5MEB-02 LWAA6E630S-5MEB-02AC Ø630 mm 11,021 see curve 520 67 900 220/230 Details
LWAA6E630S-5MEB-03 LWAA6E630S-5MEB-03AC Ø630 mm 11,536 see curve 705 69 1,050 220/230 Details
LWAA8D630S-5MEB-07 LWAA8D630S-5MEB-07AC Ø630 mm 7,210 see curve 250 60 680 380 Details
LWAA8D710S-7MEB-02 LWAA8D710S-7MEB-02AC Ø710 mm 12,360 see curve 700 67 700 380 Details
Certifications for this product line
RoHS
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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

  1. 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.
  2. Choose single-phase (E) for equipment sold to end users and three-phase (D) for plant with a 380 / 400 V supply.
  3. Use the coil pressure drop, not free-air airflow, when reading the curve.
  4. 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.

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