Description
The ebm-papst W2E142-BB01-87 (also known as W2E142BB0187) is an industrial AC axial compact fan powered by an integrated M2E052-BA 1-phase external rotor motor within a robust 172 x 150 x 38 mm (6.77 x 5.91 x 1.50 in) rounded housing. Engineered for demanding thermal management tasks, it delivers an airflow rating of 190 CFM (325 m³/h) at 50 Hz and 225 CFM (385 m³/h) at 60 Hz with power consumption held at 27 W to 28 W. The assembly features a die-cast aluminum frame, a 7-blade sheet steel impeller finished in black protective coating, and maintenance-free dual ball bearings for continuous S1 operation in any orientation. Electrical connection is established via dual 2.8 x 0.5 mm spade terminals for primary power, supplemented by an integrated AWG26 Hall-effect tachometer lead wire assembly for speed monitoring.
Key Features
- Heavy-Duty Construction: Die-cast aluminum frame paired with painted sheet steel blades ensures robust mechanical rigidity.
- Dual-Frequency Operation: Efficient 1-phase external rotor motor operates smoothly across 50 Hz and 60 Hz line power.
- Speed Feedback Monitoring: Integrated 3-wire Hall IC circuit provides reliable pulsed output for tachometric fan status sensing.
- Integrated Thermal Protection: Internal thermal overload protector automatically shields motor windings from electrical and high-load anomalies.
- Universal Installation: Premium sealed ball bearings permit mounting in any physical orientation with zero loss of bearing lifespan.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | W2E142-BB01-87 |
| Alternate Part Number | W2E142BB0187 |
| Integrated Motor Model | M2E052-BA |
| Product Series | W2E142 |
| Product Category | AC Axial Fans |
| Fan / Component Type | AC Axial Compact Fan (Tubeaxial) |
| Phase & Supply Type | 1~ Single-Phase AC |
| Rated Voltage | 230 VAC |
| Frequency | 50 / 60 Hz |
| Speed (RPM) | 2800 RPM (50 Hz) / 3350 RPM (60 Hz) |
| Power Rating | 27 W (50 Hz) / 28 W (60 Hz) |
| Max. Input Power | 31 W (at 60 Hz high-pressure point) |
| Rated Current | 0.12 A (50 Hz) / 0.13 A (60 Hz) |
| Max. Current Draw | 0.14 A (60 Hz) |
| Run Capacitor | 1.0 µF / 400 VDB (Safety Class S0 to EN 60252-1) |
| Airflow | 190 CFM (325 m³/h) at 50 Hz / 225 CFM (385 m³/h) at 60 Hz |
| Static Pressure | 0.20 in H₂O (50 Pa) at 50 Hz / 0.28 in H₂O (70 Pa) at 60 Hz |
| Noise Level | 57.0 dB(A) |
| Airflow Direction | V (Intake over struts) |
| Direction of Rotation | Counterclockwise, viewed toward rotor |
| Impeller Size | 142 mm (5.59 in) |
| Number of Blades | 7 |
| Dimensions (L × H × D) | 172 mm × 150 mm × 38 mm (6.77 in × 5.91 in × 1.50 in) |
| Housing Material | Die-cast aluminum, painted black |
| Impeller Material | Sheet steel, painted black |
| Rotor Surface | Painted black |
| Bearing Type | Dual Ball Bearings |
| Installation Position | Any orientation |
| Operating Mode / Duty Cycle | Continuous operation (S1) |
| Condensation Drainage Holes | None |
| Weight | 0.80 kg (1.76 lbs) |
| Termination & Cable Specs | 2x flat plug 2.8 x 0.5 mm; AWG26 lead wire (6 mm tin-plated) |
| Wiring Pinout / Connection | Power: L (blue), N (blue); Hall IC: Red (+5 V), White (out), Black (0 V) |
| Control / Signal Features | Hall IC tachometer speed sensor output |
| Motor Protection | Internally connected thermal overload protector (TOP) |
| Electrical Protection Class | Class I (with customer protective earth connection) |
| Touch Current (IEC 60990) | < 0.75 mA (Measuring circuit Fig. 4, TN system) |
| Insulation Class | Class B |
| Ingress Protection (IP) | IP22 (installation- and position-dependent) |
| Moisture / Environmental Class | H0+ |
| Min. Ambient Temperature | -25 °C (-13 °F) |
| Max. Ambient Temperature | +55 °C / +131 °F (50 Hz) / +65 °C / +149 °F (60 Hz) |
| Storage / Transport Temperature | -40 °C to +80 °C (-40 °F to +176 °F) |
| Standards & Compliance | CE, EN 60335-1, UL 507, CSA C22.2 No. 113, CCC, RoHS3 |
Applications
The ebm-papst W2E142-BB01-87 AC axial compact fan provides essential forced-air cooling for industrial automation control panels, CNC machine drive cabinets, and variable frequency drive (VFD) electronics assemblies. Its metal frame and high-reliability ball bearing construction make it ideal for power conversion systems, uninterruptible power supply (UPS) enclosures, and welding inverter chassis. Furthermore, it serves as a critical MRO drop-in replacement across telecom transmission base stations, medical diagnostic consoles, and server equipment racks requiring active tachometer speed monitoring.






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