English
中文 
Deutsch 
Norsk 
Polski 
Slovenský 
Suomi 
Svenska LPKB 250 E1 Updated: 2025-10-02
| 7540699 - | LPKB 250 E1 |
- Low profile duct fan with circular connections.
- A small and useful duct fan which are perfect for spaces with minimum height clearance.
- With one connection on the inlet side.
- High capacity and efficiency with low sound levels.
- Operational in both 50 and 60 Hz.
- 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 or electronic speed controller can be connected.
- Fan housing is manufactured from galvanized sheet steel.
- Duct connections are equipped with rubber seals.
- The fan is intended to be installed in a duct system.
- A duct connected fan can be installed outside or in damp environments.
- The mounting brackets simplify installation in any position.
Generating diagrams...
Generating diagrams...
|
LPKB 250 E1 7540699 |
||
|---|---|---|
| Parameter | Value | Unit |
| Voltage | 230 | V |
| Phase | 1 | ~ |
| Frequency | 50 | Hz |
| Optional frequency | 60 | Hz |
| Power | 210 | W |
| Current | 0.92 | A |
| Current when speed controlled | 1.06 | A |
| Speed | 2670 | r.p.m. |
| Max. temperature of transported air | 65 | °C |
| Sound pressure level at 3 m | 53 | dB(A) |
| Weight | 9.7 | kg |
| Enclosure class | 44 | IP |
| Insulation class, motor | F | |
| Capacitor | 6 | µF |
| Duct connection | 250 | mm |
| Max. flow @ 0Pa | 323 | l/s |
| Max. pressure | 659 | Pa |
| Voltage range | 220-240 | V |
| Parameter | Value | Unit |
|---|---|---|
| (a) Manufacturer | Östberg | - |
| (b) Model code | LPKB 250 E1 | - |
| (c) Declared type | NRVU / UVU | - |
| (d) Type of drive | Multi-speed drive (accessory) | - |
| (e) Type of HRS | none | - |
| (f) Thermal efficiency | N/A | % |
| (g) Nominal flow rate | 0.175 | m3/s |
| (h) Effective power input | 0.210 | kW |
| (i) SFP int | N/A | W/(m3/s) |
| (j) Face velocity | 3.57 | m/s |
| (k) Nominal external pressure | 418 | Pa |
| (l) Internal pressure drop | N/A | Pa |
| (n) Static efficiency | 44.5 | % |
| (o) External (and internal) leakage rate | 0.34 (N/A) | % |
| (p) Filter classification | N/A | - |
| (q) Visual filter warning | N/A | - |
| (r) Sound power level | 60 | dB LwA |
| (s) Disassembly instructions | www.ostberg.com | - |
Manuals
EU Declarations
Product Declarations
Generating diagrams...
Generating diagrams...
|
LPKB 250 E1 (50)/60Hz 7540699 (50)/60Hz |
||
|---|---|---|
| Parameter | Value | Unit |
| Voltage | 230 | V |
| Phase | 1 | ~ |
| Frequency | 60 | Hz |
| Optional frequency | 50 | Hz |
| Power | 301 | W |
| Current | 1.34 | A |
| Speed | 2780 | r.p.m. |
| Max. temperature of transported air | 65 | °C |
| Sound pressure level at 3 m | 53 | dB(A) |
| Weight | 9.7 | kg |
| Enclosure class | 44 | IP |
| Insulation class, motor | F | |
| Capacitor | 6 | µF |
| Duct connection | 250 | mm |
| Max. flow @ 0Pa | 354 | l/s |
| Max. pressure | 869 | Pa |
| Voltage range | 220-240 | V |
Manuals
EU Declarations