The 6424R-343 from EBM-Papst is a compact tube axial fan for direct current, designed for demanding ventilation applications. The fan measures 172 × 150 × 51 mm and is powered by a DC motor with a nominal voltage of 24 V. With an airflow of up to 390 m³/h, it delivers impressive performance in a small form factor.
The fan is ideal for industrial equipment, cooling units, and electronics cabinets where reliable and efficient cooling is critical. The optional mounting position and the 485 mm long connection cable make installation easy and flexible.
- Voltage: 24 V DC (range 12–28 V)
- Airflow: 390 m³/h at free air flow
- Maximum static pressure: 188 Pa
- Speed: 3,400 rpm
- Power: 17 W, rated current 710 mA
- Sound pressure level: 55 dB(A)
- Ball bearings with a lifespan of up to 75,000 hours (L10 at 40 °C)
- Motor protection: reverse polarity protection and automatic restart upon locked rotor
At Reserv, we stock EBM-Papst original parts for fast delivery. You can be confident that you will receive a genuine product with a full quality guarantee — perfect when downtime is not an option.
Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 390 m³/h |
| Speed | 3400 rpm |
| Power | 17 W |
| Voltage | 24V DC VAC |
| Motor frame | The fan has a metal casing with a width of 150 mm, a depth of 51 mm, and a diameter of 172 mm. Mounting is done via flanges with ISO 4762 M4 screws, degreased and without a washer. The maximum tightening torque during assembly is 260 Ncm in all corners. The mounting position for the shaft is optional. |
| Casing | metal, round |
| Impeller | The fan impeller is made of plastic and rotates counter-clockwise when viewed from the rotor side. The airflow is directed outwards over the struts (air outlet over struts). At a nominal speed of 3,400 rpm and free airflow, a maximum flow of 390 m³/h and a maximum static pressure of 188 Pa are achieved. |
| Bearing type | ball bearing |
| Motor protection | automatic restart on locked rotor |
| Rotation direction | counter-clockwise |
| Motor type | The motor is a DC motor with a nominal voltage of 24 V and a voltage range of 12–28 V. With free airflow and nominal voltage, the motor consumes 17 W with a current of 710 mA. The motor has reverse polarity protection via a rectifier diode and automatic restart in case of a locked rotor. The lifespan is up to 75,000 hours (L10) at 40 °C ambient temperature. |
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