The 8315100253 from EBM-Papst is a compact axial DC fan with a wall ring, designed for demanding applications where precision and controllability are crucial. The fan measures 126 × 123 × 26.4 mm and is powered by an electronically speed-controlled DC motor with a nominal voltage of 12 V. With AxiRev technology, the direction of the airflow can be reversed via PWM control – without the need to remount the fan.
The fan is ideal for electronics cabinets, industrial equipment, and ventilation systems where flexible airflow control and quiet operation are important. Its optional mounting position makes integration easy in most designs.
- Voltage: 12 V DC (range 10.8–13.2 V)
- Airflow: up to 130 m³/h, max static pressure 102 Pa
- Speed: 4,200 rpm, controllable via PWM (1–5 kHz)
- Reversible airflow via PWM signal (AxiRev)
- Reverse polarity protection and automatic restart upon locked rotor
- Ball bearings for long service life
- Sound pressure level: 52 dB(A)
- Connection via 310 mm cable with four conductors (voltage, GND, PWM, tacho)
At Reserv, EBM-Papst products are stocked by our wholesaler, ensuring quick delivery of original parts. You can shop with confidence knowing that you always receive the correct component with a full manufacturer's warranty.
Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 130 m³/h |
| Speed | 4200 rpm |
| Power | 2.5 W |
| Voltage | 12 V DC VAC |
| Motor frame | The fan measures 126 × 123 × 26.4 mm and weighs 0.17 kg. The housing is made of plastic. The mounting position is arbitrary since the motor shaft can be mounted in any position. Electrical connection is made via four conductors (red +UB, blue GND, violet CTRL, white Tacho) with a cable length of 310 mm ± 10 mm and wire gauge AWG 26. |
| Casing | plastic, round |
| Impeller | The fan impeller is made of plastic and has a diameter of 126 mm. The fan is of axial type, with axial airflow at both the inlet and outlet. Depending on PWM control, the direction of airflow can be reversed: at PWM below 45%, air is blown over the struts; at PWM above 55%, air is drawn in over the struts. The maximum free airflow is 130 m³/h, and the maximum static pressure is 102 Pa. |
| Bearing type | ball bearing |
| Motor code | VWLD126EHGKS |
| Rotation direction | clockwise (reversible) |
| Motor type | The motor is an electronically speed-controlled DC motor with a nominal voltage of 12 V and a voltage range of 10.8–13.2 V. The speed is controlled via a PWM signal (1–5 kHz, typically 2 kHz) with an open collector input. The motor has reverse polarity protection via a rectifier diode and automatic restart in case of a locked rotor. In the event of a locked rotor, the current consumption is approximately 70 mA, and rotation restarts automatically after a 2-second pause. |
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