The R4E310-AO32-13 from EBM-Papst is a backward-curved motorized impeller (centrifugal fan) with an AC motor, designed for demanding ventilation and air handling applications. With a maximum airflow of 2,025 m³/h and a power of 155 W, it delivers reliable performance at 115 V / 60 Hz. The fan impeller is made of sheet aluminum with a backward-curved single inlet, and the rotor is painted black.
This product is ideal for air handling units, ventilation systems, and industrial air treatment where high capacity and operational reliability are required. The motor, type M4E074-DF, is a single-phase AC motor with insulation class F and continuous operation (S1).
- Airflow: up to 2,025 m³/h (ISO 5801, category A)
- Voltage: 115 V AC, 60 Hz
- Power: 155 W | Speed: 1,720 rpm
- Protection class: IP44
- Ball bearings for long service life
- Internal thermal overload protection (TOP)
- Flexible mounting positions: shaft horizontal or rotor downwards
- Connection cable: PFA 4G0.5 mm²
At Reserv, you'll find original EBM-Papst parts, stocked by our wholesaler for fast delivery. You can be confident that you'll receive the correct component — every time. See the datasheet on the product page for full technical information.
Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 2025 m³/h |
| Speed | 1720 rpm |
| Power | 155W |
| Frequency | 60 Hz |
| Voltage | 115 V AC VAC |
| Motor frame | The fan can be mounted with the shaft horizontally or with the rotor downwards as standard positions; mounting with the rotor upwards is available on request. Condensate drain holes are located on the rotor side. Mounting screws may have a maximum clamping length of 10 mm. An inlet ring (31050-2-4013) is available as an accessory but is not included in the delivery; a short nozzle (31051-2-4013) is available on request. |
| Casing | backward-curved, single inlet, rotor painted black |
| Impeller | The fan impeller is of the backward-curved single-inlet type and has a diameter of 310 mm. It is made of sheet aluminum, and the rotor's surface is painted black. The airflow is measured according to ISO 5801 installation category A and amounts to a maximum of 2025 m³/h at free air flow. |
| Bearing type | ball bearing |
| IP class | IP44 |
| Motor protection | Thermal overload protector (TOP), internally connected |
| Motor code | M4E074-DF |
| Rotation direction | clockwise, looking towards the rotor |
| Motor type | The motor is a single-phase AC motor, type M4E074-DF, designed for 115 V / 60 Hz. It has insulation class F and is equipped with an internal thermal overload protector (TOP). The motor is fitted with ball bearings and has an enclosure rating of IP44, depending on installation and position. The operating mode is S1 (continuous operation) and the capacitor is 16 µF / 220 VDB. |
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