H01 · Centrifugal fans
AS-RFL
Commercial Backward-Curved Scroll Fans
AS-RFL scroll fans can be used in all kinds of ventilation projects. They feature high-flow impeller blades, a durable casing and a discharge outlet whose direction can be changed.
The scroll casing is made of galvanized sheet steel with an electrostatic powder coating, with round or rectangular connections. The fan can be installed in a cabinet or in-line, with horizontal or vertical air discharge. Backward-curved aluminium impellers, balanced to ISO 1940-1, cover sizes from Ø280 to Ø710 mm.
The direct-drive, totally enclosed fan-cooled (TEFC) asynchronous motors are 4-pole WAT motors with IP55 protection and class F insulation, rated for S1 and S2 duty. IE3 efficiency is standard; IE4 and EC motors are available on request. Versions for 50 Hz and 60 Hz supplies are available. Operating air temperature: −20 °C to +50 °C. Standards: IEC 60335-2-80, ISO 1940-1.


Models (9)· 50 Hz
| Model | Diameter [mm] | Max. airflow [m³/h] | Max. pressure [Pa] | Motor [kW] | Speed [min⁻¹] | Lp 1 m [dB(A)] | Datasheet |
|---|---|---|---|---|---|---|---|
| AS-RFL 280 | 280 | 1,089* | 181* | 0.25IE3 | 1,435 | 36 | Datasheet |
| AS-RFL 315 | 315 | 1,525* | 223* | 0.25IE3 | 1,400 | 37 | Datasheet |
| AS-RFL 355 | 355 | 2,330* | 287* | 0.37IE3 | 1,428 | 42 | Datasheet |
| AS-RFL 400 | 400 | 3,278* | 367* | 0.55IE3 | 1,425 | 45 | Datasheet |
| AS-RFL 450 | 450 | 5,600 | 500 | 0.75IE3 | 1,447 | 47 | Datasheet |
| AS-RFL 500 | 500 | 7,522* | 612* | 1.10IE3 | 1,447 | 49 | Datasheet |
| AS-RFL 560 | 560 | 11,086* | 784* | 1.50IE3 | 1,449 | 51 | Datasheet |
| AS-RFL 630 | 630 | 15,386* | 973* | 3.00IE3 | 1,445 | 54 | Datasheet |
| AS-RFL 710 | 710 | 13,400 | 525 | 4.00 | 950 | 56 | Datasheet |
* Curve scaled to the motor speed with the fan laws (Q∝n, p∝n²) — estimate.
Models (9)· 60 Hz
| Model | Diameter [mm] | Max. airflow [m³/h] | Max. pressure [Pa] | Motor [kW] | Speed [min⁻¹] | Lp 1 m [dB(A)] | Datasheet |
|---|---|---|---|---|---|---|---|
| AS-RFL 280 60 Hz | 280 | 1,400 | 266 | 0.55IE3 IM60 | 1,745 | 40 | Datasheet |
| AS-RFL 315 60 Hz | 315 | 1,980* | 346* | 0.55IE3 IM60 | 1,745 | 41 | Datasheet |
| AS-RFL 355 60 Hz | 355 | 2,867* | 429* | 0.55IE3 IM60 | 1,745 | 46 | Datasheet |
| AS-RFL 400 60 Hz | 400 | 4,132* | 551* | 0.75IE3 IM60 | 1,745 | 49 | Datasheet |
| AS-RFL 450 60 Hz | 450 | 6,337* | 728* | 1.10IE3 IM60 | 1,755 | 51 | Datasheet |
| AS-RFL 500 60 Hz | 500 | 8,800 | 900 | 1.50IE3 IM60 | 1,748 | 53 | Datasheet |
| AS-RFL 560 60 Hz | 560 | 12,300 | 1,152 | 3.00IE3 IM60 | 1,763 | 55 | Datasheet |
| AS-RFL 630 60 Hz | 630 | 17,600 | 1,440 | 4.00IE3 IM60 | 1,757 | 58 | Datasheet |
| AS-RFL 710 60 Hz | 710 | 16,400 | 756 | 5.50 | 1,140 | 60 | Datasheet |
* Curve scaled to the motor speed with the fan laws (Q∝n, p∝n²) — estimate.
Catalogue page
Printable A4 catalogue page, made from the AEROMIS product database.


