The S4D250-AM40-01 from EBM-Papst is a robust axial fan with a protective guard grille, designed for demanding ventilation applications in industry and HVAC. The fan measures 314×314×84 mm and is powered by a three-phase AC motor (M4D068-CF) wired for 400 V in a star connection at 50/60 Hz. With an airflow of up to 920 m³/h and a sound level of only 49 dB(A), it delivers high capacity with relatively low noise impact.
The fan is excellent for use in air handling units, cooling systems, and ventilation systems where reliable continuous operation (S1) and a good degree of protection are required. The sickle-shaped impeller with seven blades optimizes airflow and reduces turbulence.
- Airflow: 920 m³/h
- Voltage: 400 V AC (star connection), also possible 230 V (delta connection)
- Speed: 1,370/1,530 rpm at 50/60 Hz
- Power: 25 W, rated current 0.06 A
- Protection class: IP44
- Ball bearings for long service life
- Steel protective grille coated with black plastic (RAL9005)
- Standard mounting: shaft horizontal or rotor down
At Reserv, EBM-Papst products are stocked by our wholesaler, ensuring quick delivery of original parts. You can order with confidence — the right component, the right quality, directly to you. See the datasheet on the product page for complete technical information.
Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 920 m³/h |
| Speed | 1370/1530 rpm |
| Power | 25W |
| Frequency | 50/60 Hz |
| Voltage | 400V AC VAC |
| Motor frame | The fan is supplied with a steel guard coated with black plastic (RAL9005), adapted for short nozzles. Condensation drainage holes are located on the impeller side. The fan is mounted with the shaft horizontally or the impeller downwards as standard; mounting with the impeller upwards is possible upon request. The fan weighs 2.2 kg and has a size of 250 mm. |
| Casing | steel protective grille coated with black plastic (RAL9005) |
| Impeller | The fan impeller belongs to the S-series with sickle-shaped blades and has single-sided intake. It is equipped with 7 pressed steel sheet blades, spray-coated with PP plastic. The rotor surface is painted black and the airflow direction is marked as 'V'. The direction of rotation is counter-clockwise when viewed towards the rotor. |
| Bearing type | ball bearing |
| IP class | IP44 |
| Motor code | M4D068-CF |
| Rotation direction | counterclockwise, viewed facing the rotor |
| Motor type | The motor is a size 68 three-phase AC motor, type M4D068-CF. It is wound for both 230 V (delta connection) and 400 V (star connection) at 50/60 Hz. The insulation class is 'B' and the motor lacks factory-installed overheating protection. The duty cycle is S1 (continuous operation) and the motor is designed for protection class I with customer-connected protective earth. The environmental protection class is H1. |
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