The RER225-55/18/2TDMO is a powerful EC centrifugal fan from EBM-Papst, part of the S-Force series. It combines a RadiCal impeller with backward-curved blades and an electronically commutated 3-phase motor for exceptionally high pressure and high efficiency. With an airflow of up to 1210 m³/h and an IP54 protection rating, it is suitable for demanding industrial applications.
The fan is ideal for control cabinets, industrial ventilation, and process air systems where compact design, high efficiency, and variable speed via PWM control are important. The wide voltage range of 36–72 V DC provides great flexibility in system integration.
- Voltage: 48 V DC (range 36–72 V DC)
- Airflow: up to 1210 m³/h
- Speed: 2800 rpm (nominal)
- Power: 120 W
- Protection class: IP54
- Bearing type: ball bearing
- Impeller: RadiCal, fiberglass-reinforced plastic, Ø225 mm
- PWM control: 800 rpm at 7% up to nominal speed at >90%
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Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 1210 m³/h |
| Speed | 2,800 rpm |
| Power | 120W |
| Voltage | 48 V DC VAC |
| Motor frame | The fan is mounted on a 230×230 mm base plate. Airflow and sound level measurements were performed with a 230×230 mm cover plate with a Ø146 mm air inlet, concentric with the fan impeller. Fastening is done with M4 screws (4 pcs). The fan weighs 1030 g. |
| Impeller | The fan impeller is of RadiCal type with backward-curved blades and made of fiberglass-reinforced plastic. It provides very high pressure increase and maximum efficiency. The airflow is axial intake flow and centrifugal exhaust flow via the outlet. The fan impeller diameter is 225 mm and the depth is 99 mm. The direction of rotation is clockwise when viewed from the rotor side. |
| Bearing type | ball bearing |
| IP class | IP54 |
| Motor code | RER225-55/18/2TDMO |
| Rotation direction | clockwise from the rotor |
| Motor type | The motor is a 3-phase EC (electronically commutated) motor with very smooth operation. It has fully integrated electronic commutation and a voltage range of 36–72 V DC with a nominal voltage of 48 V DC. The motor's nominal speed is 2800 rpm and power consumption is 120 W. The speed can be controlled via PWM signal from 800 rpm at 7% PWM up to nominal speed at >90% PWM. At 0% PWM, the fan stops (type O: stops on sensor failure). |
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