The R3G250-RR04-N1 from EBM-Papst is a high-performance EC centrifugal fan with backward-curved blades, designed for demanding industrial environments. The fan delivers up to 2,145 m³/h at 4,000 rpm and is powered by a three-phase EC motor (M3G084-DF) with a rated voltage of 400 V AC. Thanks to its IP55 protection class and cast aluminum housing, it is ideally suited for harsh operating conditions.
The fan is approved for railway applications according to EN 50155 and EN 45545-2 HL3, making it a natural choice for rail vehicles and other transport technology. The integrated PID controller, soft start, and RS-485 MODBUS-RTU interface provide easy control and integration into modern control systems.
- Airflow: up to 2,145 m³/h
- Voltage: 400 V AC (380–480 V AC), 50/60 Hz
- Power: 595 W, rated current 0.95 A
- Protection class: IP55
- Cast aluminum housing with sealed ball bearings
- Integrated PID controller, soft start, and RS-485 MODBUS-RTU
- Halogen-free railway cable (EN 45545) as standard
- Thermal contact with automatic reset
At Reserv, we stock original EBM-Papst parts for fast delivery. You can be confident that you will receive the correct component—certified and ready for delivery. See the datasheet on the product page for complete technical information.
Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 2145 m³/h |
| Speed | 4000 rpm |
| Power | 595 W |
| Frequency | 50/60 Hz |
| Voltage | 400V AC VAC |
| Motor frame | The casing is made of cast aluminium and forms the fan's structural frame. The normal mounting position is with the shaft horizontal or the rotor downwards; mounting with the rotor upwards is possible on request. Condensation drainage holes are located on the rotor side. An accessory inlet ring (part no. 96420-2-4013) is available as an option but is not included in the delivery. The unit weighs 5.06 kg and has a maximum screw length of 16 mm for fastening. |
| Casing | cast aluminum |
| Impeller | The fan impeller is a backward-curved, single-inlet wheel with 7 blades made of PA plastic UL94V0. The rotor surface is painted black. The impeller has a diameter of 250 mm and is designed for high-efficiency centrifugal operation. The fan impeller rotates clockwise when viewed from the rotor, providing a maximum airflow of 2145 m³/h at free flow and 4000 rpm. |
| Bearing type | sealed bearings |
| IP class | IP55 |
| Motor protection | Thermal switch with automatic reset, internally connected |
| Motor code | M3G084-DF |
| Rotation direction | clockwise, looking towards the rotor |
| Motor type | The motor is a three-phase EC motor (electronically commutated) of type M3G084-DF with a rated voltage of 400 V AC (range 380–480 V AC) and a frequency of 50/60 Hz. It has insulation class F and environmental protection class H3. The motor is equipped with a range of integrated functions such as a PID controller, soft start, power limiter, overvoltage protection, phase failure detection, and an RS-485 MODBUS-RTU interface. Motor protection is provided by a thermal safety switch with automatic reset. The motor meets EMC requirements according to EN 50121-3-2 and is approved for railway applications according to EN 50155 and EN 45545-2 HL3. |
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