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Svenska BFS 850x850 D3 Updated: 2023-02-26
| 7460016 - | BFS 850x850 D3 |
- Duct fan with square connections.
- High capacity and very good efficiency.
- Impeller with backward curved blades.
- The external rotor motor has maintenance-free sealed ball-bearings.
- Integrated motor protection.
- Junction box has enclosure class IP 54.
- For speed control a transformer can be connected.
- Fan housing is manufactured from galvanized sheet steel.
- The fan is intended to be installed in a duct system.
- A duct connected fan can be installed outside or in damp environments.
- Easy installation in any position.
Generating diagrams...
Generating diagrams...
|
BFS 850x850 D3 7460016 |
||
|---|---|---|
| Parameter | Value | Unit |
| Voltage | 400 | V |
| Voltage Delta | 230 | V |
| Phase | 3 | ~ |
| Frequency | 50 | Hz |
| Power | 3910 | W |
| Current | 6.6 | A |
| Current 2 | 11.48 | A |
| Current Delta | 11.48 | A |
| Speed | 1280 | r.p.m. |
| Max. temperature of transported air | 55 | °C |
| Max. temperature of transported air when speed controlled | 55 | °C |
| Sound pressure level at 3 m | 66 | dB(A) |
| Weight | 73.8 | kg |
| Enclosure class | 54 | IP |
| Insulation class, motor | F | |
| Duct connection | 850x850 | mm |
| Max. flow @ 0Pa | 5304 | l/s |
| Max. pressure | 875 | Pa |
| Parameter | Value | Unit |
|---|---|---|
| (a) Manufacturer | Östberg | - |
| (b) Model code | BFS 850x850 D3 | - |
| (c) Declared type | NRVU / UVU | - |
| (d) Type of drive | Multi-speed drive | - |
| (e) Type of HRS | N/A | - |
| (f) Thermal efficiency | N/A | % |
| (g) Nominal flow rate | 2.420 | m3/s |
| (h) Effective power input | 3.424 | kW |
| (i) SFP int | N/A | W/(m3/s) |
| (j) Face velocity | 4.3 | m/s |
| (k) Nominal external pressure | 664 | Pa |
| (l) Internal pressure drop | N/A | Pa |
| (n) Static efficiency | 51.5 | % |
| (o) External (and internal) leakage rate | 0.07 (N/A) | % |
| (p) Filter classification | N/A | kWh |
| (q) Visual filter warning | N/A | - |
| (r) Sound power level | 73 | dB LwA |
| (s) Disassembly instructions | www.ostberg.com | - |
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