S&P IRAB/IRAT Duct Fan, Sound-Insulated
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Description
Description
S&P IRAB/IRAT: Duct Fan, Sound-Insulated. Available are the versions IRAB/4 A-N, IRAB/4 B-N, IRAB/4 N, IRAT/4 A-N, IRAT/4 B-N and IRAT/4 N as well as the sizes 315, 355, 400 and 450.
Technical data
Technical data
| Manufacturer | S&P |
|---|---|
| Design | duct fan for rectangular ducts, sound-insulated |
| Casing | galvanised sheet steel, 50 mm sound insulation lining, non-combustible (M0) |
| Impeller | aluminium centrifugal impeller, free-running, backward curved, statically and dynamically balanced to ISO 1940 |
| Motor | AC motor, insulation class F, continuous duty S1, sealed ball bearings (maintenance-free according to the manufacturer) |
| Motor protection | thermal contact wired separately to the terminal board; according to the manufacturer, all-pole motor protection to EN 60335-2-80 in combination with the MSD-2 motor protection switch |
| Series | IRAB N/IRAT N |
| Mounting position | any (every axial position) |
| S&P type | Item number | Version | Size | Duct connection | Length | Speed | Power input | Motor current 230 V / 400 V | Max. airflow | Sound pressure level¹ | Air temperature range | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IRAB/4-315 A-N | 5132933300 | IRAB/4 A-N | 315 | 600 x 350 mm | 765 mm | 1397 rpm | 278 W | n/a | n/a | n/a | -40 to +70 °C | 54 kg |
| IRAB/4-315 B-N | 5132933500 | IRAB/4 B-N | 315 | 600 x 350 mm | 765 mm | 1388 rpm | 569 W | n/a | n/a | n/a | -40 to +70 °C | 57 kg |
| IRAB/4-355 N | 5132933800 | IRAB/4 N | 355 | 700 x 400 mm | 840 mm | 1402 rpm | 845 W | n/a | n/a | n/a | -40 to +50 °C | 66 kg |
| IRAT/4-315 A-N | 5132933400 | IRAT/4 A-N | 315 | 600 x 350 mm | 765 mm | 1400 rpm | 244 W | 0.9 / 0.5 A | 2,550 m³/h | 47 dB(A) | -40 to +50 °C | 52 kg |
| IRAT/4-400 A-N | 5132933900 | IRAT/4 A-N | 400 | 800 x 500 mm | 930 mm | 1430 rpm | 1501 W | 5.5 / 3.2 A | 7,940 m³/h | 56 dB(A) | -40 to +70 °C | 91 kg |
| IRAT/4-315 B-N | 5132933600 | IRAT/4 B-N | 315 | 600 x 350 mm | 765 mm | 1415 rpm | 568 W | 2.1 / 1.2 A | 3,850 m³/h | 50 dB(A) | -40 to +70 °C | 55 kg |
| IRAT/4-400 B-N | 5132934000 | IRAT/4 B-N | 400 | 800 x 500 mm | 930 mm | 1395 rpm | 2142 W | 6.9 / 4.0 A | 9,580 m³/h | 58 dB(A) | -40 to +40 °C | 100 kg |
| IRAT/4-355 N | 5132933700 | IRAT/4 N | 355 | 700 x 400 mm | 840 mm | 1400 rpm | 813 W | 2.9 / 1.7 A | 5,560 m³/h | 53 dB(A) | -40 to +60 °C | 64 kg |
| IRAT/4-450 N | 5132934100 | IRAT/4 N | 450 | 1000 x 500 mm | 1030 mm | 1380 rpm | 2379 W | 7.4 / 4.3 A | 10,720 m³/h | 60 dB(A) | -40 to +40 °C | 125 kg |
¹ Sound pressure level radiated by the casing, measured at 1.5 m distance in free field at curve point 2 according to the S&P main catalogue. Airflow free-blowing. Performance curves and sound power spectra are given in the S&P main catalogue.
Features
Features
- Motor/impeller unit can be swung out for cleaning and maintenance (inspection door) according to the manufacturer.
- Rectangular duct connection for installation directly in rectangular ducts.
- Casing with 50 mm sound insulation lining made of non-combustible material (M0) according to the manufacturer.
- Motor with thermal contact wired separately to the terminal board; according to the manufacturer, all-pole motor protection is achieved with the MSD-2 motor protection switch (accessory).
- Performance data determined to ISO 5801 and AMCA 210-99 according to the manufacturer.
- As mounting accessories S&P lists, among others, for each size the counter flange IBR, flexible connection IAE, duct silencer IAA, filter box IFL G4 (G4 filter mat) or IFL F (empty housing for IFR filter cassette M5 or F7), electric heating coil IBE, hot water heating coil IBW, louvre damper IJK and weather protection grille IWG, each with the size in the type designation (e.g. IBR-315), plus ISA vibration dampers (4 pieces per packaging unit).
- Speed controllable via transformer and electronically according to the manufacturer.
Note on variants
Note on variants
The table above lists the S&P type and the item number for each option.
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