The RL65-21/12-2HP from EBM-Papst is a compact DC radial blower from the FlatPak series, with dimensions of 97×93.5×33 mm and a nominal voltage of 12 V DC. It is ideal for applications where efficient airflow is required in a thin, space-saving format.
Thanks to PWM control and electronic speed control, the fan is well suited for cooling electronics, medical equipment, and industrial systems where precise air control is crucial. Air is drawn in axially and discharged radially, providing an efficient and directed flow.
- Voltage: 12 V DC (range 10.8–12.6 V)
- Airflow: max 61 m³/h at free airflow
- Maximum static pressure: 390 Pa
- Speed: 4,900 rpm at 100% PWM
- Power: 19 W, rated current 1,600 mA
- Speed control: PWM signal 21–28 kHz
- Motor protection: automatic restart at locked rotor and reverse polarity protection
- Bearing type: ball bearing
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Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 61 m³/h |
| Speed | 4900 rpm |
| Power | 19 W |
| Voltage | 12 V DC VAC |
| Motor frame | The fan is mounted with M4 screws (ISO 4762, degreased, without washer) via the mounting brackets. The width is 97 mm, the height 94 mm, and the depth 33 mm. The motor shaft can be mounted in any position. The casing is made of plastic and the fan weighs 0.16 kg. |
| Casing | plastic |
| Impeller | The fan impeller is made of plastic and is of the centrifugal (blower) type. Air is drawn in axially and discharged radially. At free air flow, a maximum airflow of 61 m³/h is achieved, and a maximum static pressure of 390 Pa. The optimal operating point is 27 m³/h at 242 Pa. |
| Bearing type | ball bearing |
| Motor protection | automatic restart on locked rotor |
| Motor code | RL65-21/12/2HP |
| Rotation direction | counter-clockwise |
| Motor type | The motor is an electronically controllable DC motor with a nominal voltage of 12 V DC and a voltage range of 10.8–12.6 V. The speed at free airflow and 100% PWM is 4,900 rpm. The motor has built-in reverse polarity protection via a rectifier diode and automatic restart in case of a locked rotor. Speed control is achieved via a PWM signal with a frequency of 21–28 kHz. |
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