The 3312N/2H3P from EBM-Papst is a DC axial fan with an associated wall ring, measuring 92 × 92 × 32 mm. The fan delivers up to 133 m³/h at free air flow and is suitable for demanding cooling applications where compact size and high performance are crucial. The housing and impeller are made of plastic, and ball bearings provide a long and reliable operating life.
Thanks to support for PWM speed control (1–30 kHz) and a wide voltage range of 7–13.2 V DC, the fan is excellent for control cabinets, server environments, and industrial electronics where precise air cooling is required. Optional mounting position and M4 fastening in the corner flanges make installation easy and flexible.
- Voltage: 12 V DC (7–13.2 V permissible range)
- Airflow: 133 m³/h
- Static pressure: max 130 Pa
- Speed: 4,350 rpm
- Power: 5.5 W
- Noise level: 50 dB(A)
- Bearing type: ball bearing
- Connection: 310 mm cable, 3-wire with open-collector tachometer
- Reverse polarity protection and automatic restart upon locked rotor
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Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 133 m³/h |
| Speed | 4350 rpm |
| Power | 5.5 W |
| Voltage | 12 V DC VAC |
| Motor frame | The fan is mounted using M4 screws (ISO 4762, degreased, without washer) in the mounting flanges at the corners. The mounting position can be arbitrary along the motor shaft. The maximum tightening torque in the mounting corners is 80 Ncm for all corners, including the cable corner. |
| Casing | plastic, square |
| Impeller | The fan impeller is made of plastic and is mounted on an axial fan of type 3312 N/2H3P with dimensions 92 × 92 × 32 mm. The airflow direction is out over the struts. With free airflow and 100% PWM, a maximum airflow of 133 m³/h and a maximum static pressure of 130 Pa are achieved at 4,350 rpm. |
| Bearing type | ball bearing |
| Rotation direction | clockwise |
| Motor type | The motor is a DC motor with electronic speed control via a PWM signal (1–30 kHz, typically 25 kHz). The rated voltage is 12 V DC with an allowable voltage range of 7–13.2 V. The motor has reverse polarity protection via a rectifier diode and automatic restart in case of a locked rotor. The enclosure class is not specified, and the motor is intended for indoor use in a controlled environment. |
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