ebm-papst R2D250-RA10-18 RadiCal Centrifugal Fan
Backward curved blades, single inlet, for railway applications
Nominal Parameters
| Parameter | Value |
|---|---|
| Type | R2D250-RA10-18 |
| Motor | M2D068-EC |
| Phase | 3~ |
| Nominal Voltage | 400 VAC |
| Connection | Y |
| Frequency | 50 Hz |
| Method of data determination | M |
| Conforms to standards | CE |
| Speed | 2500 min⁻¹ |
| Input Power | 200 W |
| Current Consumption | 0.33 A |
| Min. back pressure | 0 Pa |
| Min. ambient temperature | -25 °C |
| Max. ambient temperature | 80 °C |
| Starting current | 0.95 A |
M = Max. load, M = Max. efficiency, s = Free delivery, t = Customer requirement, c = Customer installation
Subject to change
Technical Description
| Specification | Details |
|---|---|
| Weight | 2.9 kg |
| Motor Size | 250 mm |
| Rotor Coating | Black lacquered finish |
| Impeller Material | PA polymer, circular sheet metal with black lacquered finish |
| Number of Blades | 7 |
| Direction of Rotation | Clockwise, viewed on rotor |
| Degree of Protection | IP 44; depending on mounting position |
| Insulation Class | F |
| Protection Class against Moisture (F) / Environmental Protection Class (H) | F2-2 |
| Max. permissible ambient temperature (transport/storage) | +80 °C |
| Min. permissible ambient temperature (transport/storage) | -40 °C |
| Mounting Position | Rotor below |
| Condensate Drain Holes | On rotor side |
| Operating Mode | S1 |
| Type of Motor Bearings | Ball bearings |
| Contact Current per IEC 60990 (Measuring Circuit Fig. 4, TN System) | < 0.75 mA |
| Motor Protection | Thermal contact (TW) brought out, isolated from base |
| Cable Connection | Side |
| Motor Protection Device | 1 (if protective conductor connected on customer side) |
| Product Compliance with Standards | EN 45545-2, R22/R23, HL3: 2013; IEC 61373: 2010 |
Product Drawing
Diagram Description: The drawing shows a side view and a top view of the R2D250-RA10-18 fan. Key dimensions are indicated with numerical values and tolerances. The side view shows the overall dimensions, including the diameter of the impeller and the motor housing. The top view illustrates the mounting hole pattern and the overall diameter. A legend indicates accessory part numbers and cable specifications.
- 1: Accessory: Inlet diffuser 96359-2-4013, not included in delivery scope.
- 2: Screw-in depth: max. 5 mm.
- 3: Halogen-free connecting cable, BETAtrans® 3 GKW flex, sw 6G 0.5 mm², with 6 connected cable lugs.
Connection Diagram
Diagram Description: The diagram shows the electrical connection schematic for the fan. It illustrates the connections for PE (Protective Earth), L1, L2, L3 (phase lines), and TOP (likely a terminal for a specific function). The motor windings are shown as U1, V1, W1 and U2, V2, W2, indicating a Y (Star) connection.
Note: Changing the direction of rotation is achieved by swapping two phases.
Star Connection
| Connection | Description |
|---|---|
| Y | Star connection |
| L1 | = U1 = Black |
| L2 | = V1 = Blue |
| L3 | = W1 = Brown |
| PE | Green/Yellow |
| TOP | 2x Grey |
Performance Characteristics (Airflow at 50 Hz)
Diagram Description: This section contains a performance curve graph showing the relationship between airflow (qv) and pressure (pfs) for the fan at 50 Hz. The graph displays multiple curves representing different operating conditions or motor speeds. The x-axis represents airflow in m³/h and cfm, while the y-axis represents pressure in Pa and in. wg. Several data points are plotted, indicating specific performance values.
Measurement: LU-132665-1
Performance measurements conform to ISO 5801 category A. For detailed measurement methods, please contact ebm-papst specialists. Sound pressure level on the suction side: LwA according to ISO 13347 / LpA at a distance of 1m from the fan axis.
The data is valid only under the specified measurement conditions and may vary depending on installation conditions. If the standard configuration is deviated from, all values must be checked in the assembled installation.
Measurement Data
| U [V] | f [Hz] | n [min⁻¹] | Pe [W] | I [A] | qv [m³/h] | Pfs [Pa] | qv [cfm] | Pfs [in. wg] |
|---|---|---|---|---|---|---|---|---|
| 400 | 50 | 2625 | 159 | 0.27 | 1450 | 0 | 855 | 0.00 |
| 400 | 50 | 2515 | 194 | 0.32 | 1175 | 200 | 690 | 0.80 |
| 400 | 50 | 2500 | 200 | 0.33 | 885 | 360 | 520 | 1.45 |
| 400 | 50 | 2535 | 182 | 0.30 | 600 | 460 | 355 | 1.85 |
U = Supply voltage, f = Frequency, n = Speed, Pe = Input power, I = Current consumption, qv = Airflow, Pfs = Static pressure
