Description
ebm-papst W2D250-GA02-07 (also known as W2D250GA0207) is a heavy-duty 400 VAC three-phase industrial AC axial fan equipped with straight blades (A series), an integrated full square wall ring, and a high-efficiency M2D068-DF external rotor motor measuring 268 × 268 × 82.5 mm (10.55 × 10.55 × 3.25 in). Designed for high-backpressure ventilation, it produces up to 3000 RPM delivering 1100 CFM (1870 m³/h) of airflow and withstanding up to 280 Pa (1.12 in H₂O) maximum backpressure with an energy-efficient 112 W (50 Hz) and 180 W (60 Hz) power draw. The mechanical architecture incorporates a black-coated 5-blade sheet steel impeller, dual precision ball bearings, a galvanized steel wall ring, and an IP44 protection rating. Electrical connection is established via a 250 mm PVC lead cable pre-crimped with a Molex 350 767-1 3-position rectangular connector arranged for balanced three-phase star (Y) operation.
Key Features
- Aerodynamic Efficiency: Generates up to 1100 CFM (1870 m³/h) free air output and sustains 280 Pa backpressure across dual-frequency operation.
- Three-Phase M2D068-DF Motor: Features an integrated external rotor motor wired in star connection for low-vibration continuous S1 industrial duty.
- Rugged Sheet Steel Construction: Employs a 5-blade black-coated sheet steel impeller paired with a phosphated plastic-coated mounting ring and galvanized wall ring.
- Industrial Environmental Ingress: Engineered with IP44 protection and Class F1-2 humidity resistance across wide -40 °C to +80 °C storage thresholds.
- Pre-Terminated Molex Harness: Fitted with a lateral 250 mm PVC cable terminated with a 3-pin Molex 350 767-1 plug for rapid drop-in installation.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | W2D250-GA02-07 |
| Alternate Part Number | W2D250GA0207 |
| Integrated Motor Model | M2D068-DF |
| Product Series | W2D250 (A Series) |
| Product Category | AC Axial Fans |
| Fan / Component Type | AC Axial Fan with Full Square Nozzle / Wall Ring |
| Phase & Supply Type | 3-Phase AC (3~) |
| Rated Voltage | 400 VAC |
| Winding Connection | Star (Y) Connection |
| Frequency | 50 Hz / 60 Hz |
| Speed (RPM) | 2700 RPM (50 Hz) / 3000 RPM (60 Hz) |
| Power Rating | 112 W (50 Hz) / 180 W (60 Hz) |
| Rated Current | 0.23 A (50 Hz) / 0.27 A (60 Hz) |
| Max. Current Draw | 0.24 A (50 Hz at load) / 0.29 A (60 Hz at load) |
| Airflow | 1012 CFM (1720 m³/h at 50 Hz) / 1100 CFM (1870 m³/h at 60 Hz) |
| Max. Back Pressure | 1.120 in H₂O (280 Pa) |
| Airflow Direction | Direction ‘A’ (Exhaust over Struts / Suck over Rotor) |
| Direction of Rotation | Clockwise (seen on rotor) |
| Impeller Size | Ø 250 mm (9.84 in), 5 Blades |
| Dimensions (L × H × D) | 268 × 268 × 82.5 mm (10.55 × 10.55 × 3.25 in) |
| Mounting Ring Spacing / Pitch | 263 × 263 mm (10.35 × 10.35 in) |
| Nozzle Inner Diameter | Ø 257 mm (10.12 in) |
| Impeller Material | Sheet steel, coated in black |
| Rotor Surface | Coated in black |
| Wall Ring Material | Sheet steel, galvanized |
| Mounting Ring Material | Steel, phosphated and coated in black plastic |
| Bearing Type | Dual Precision Ball Bearings |
| Installation Position | Any (Universal Mounting) |
| Operating Mode / Duty Cycle | Continuous Duty (S1) |
| Weight | 2.9 kg (6.39 lbs) |
| Termination & Cable Specs | Lateral exit PVC 3× 0.5 mm² cable, 250 mm (9.84 in) length, Molex housing 350 767-1 |
| Wiring Pinout / Connection | Pin 1: Black (U1 / L1), Pin 2: Blue (V1 / L2), Pin 3: Brown (W1 / L3) |
| Motor Protection | Requires external customer overload/overheating protection (EN 60335-1) |
| Electrical Protection Class | Class I (with customer earth connection) |
| Touch Current (IEC 60990) | < 0.75 mA |
| Insulation Class | Class B |
| Humidity Class | F1-2 |
| Ingress Protection (IP) | IP44 (dependent on installation and position) |
| Operating Temperature | -25 °C to +60 °C (-13 °F to +140 °F at 50 Hz) / +50 °C (+122 °F at 60 Hz) |
| Storage Temperature | -40 °C to +80 °C (-40 °F to +176 °F) |
| ErP Directive Compliance | Overall efficiency ηe: 28.1%, Efficiency grade N: 40 (Request 2015 compliant) |
| Standards & Compliance | CE, EAC, EN 60335-1, RoHS3 |
Applications
ebm-papst W2D250-GA02-07 axial fans are engineered specifically for high-reliability thermal management across commercial refrigeration condensers, heat pump evaporator units, and chiller heat exchangers. They serve as primary exhaust and intake fans within industrial automation control cabinets, variable frequency drive enclosures, and uninterruptible power supply converter cubicles. Additionally, maintenance technicians integrate this square-nozzle model into agricultural ventilation systems, electronics packaging bays, and rooftop HVAC air handling equipment requiring balanced three-phase operation.
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