Description
The ebm-papst 632NU is a heavy-duty, high-performance compact brushless DC tubeaxial fan engineered for demanding thermal environments requiring resilient environmental sealing. Encased in a standardized 60 x 60 x 25 mm (2.36 x 2.36 x 0.98 in) glass-fiber reinforced PBT plastic housing with a matching glass-fiber reinforced PA plastic impeller, it delivers an optimal balance of structural rigidity and aerodynamic efficiency. Operating across a nominal 12 VDC supply (6 to 15 VDC operational range), the fan generates 23.5 CFM (40 m³/h) of volumetric airflow at 5900 RPM while consuming a lean 1.8 W of electrical power. Fitted with long-life dual ball bearings and rated up to IP68 for continuous dust and water immersion defense, connection is established via robust AWG 22 TR 64 flying lead wires.
Key Features
- Environmental Protection: Engineered with IP68 ingress protection to guard internal electronics against moisture, continuous immersion, and particulate contamination.
- Aerodynamic Output: Delivers 23.5 CFM (40 m³/h) of volumetric throughput at 5900 RPM for dense enclosure cooling.
- Robust Construction: Reinforced PBT housing and PA impeller withstand high mechanical stress and elevated thermal operation up to 70°C.
- Dual Ball Bearings: Heavy-duty ball bearing system ensures a high service life of 85,000 hours at 40°C ambient temperatures.
- Flexible Electrical Range: Accommodates broad 6 to 15 VDC inputs while drawing a low nominal power consumption of 1.8 W.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | 632NU |
| Product Series | 630U |
| Product Category | DC Axial Fans |
| Fan / Component Type | Tubeaxial Cooling Fan |
| Supply Type | DC |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 6.0 to 15.0 VDC |
| Speed (RPM) | 5900 RPM |
| Power Consumption | 1.8 W |
| Airflow | 23.5 CFM (40.0 m³/h) |
| Sound Pressure Level | 33 dB(A) |
| Sound Power Level | 5.2 B |
| Airflow Direction | Exhaust over struts |
| Direction of Rotation | Clockwise, viewed toward rotor |
| Dimensions (L × H × D) | 60 x 60 x 25 mm (2.36 x 2.36 x 0.98 in) |
| Housing Material | Glass-fiber reinforced PBT plastic |
| Impeller Material | Glass-fiber reinforced PA plastic |
| Bearing Type | Ball bearing |
| Weight | 0.07 kg (0.154 lbs) |
| Termination & Cable Specs | 2 Flying Lead Wires, AWG 22, TR 64 |
| Ingress Protection (IP) | IP68 (Dust-tight and protected against continuous immersion) |
| Min. Ambient Temperature | -20 °C (-4 °F) |
| Max. Ambient Temperature | 70 °C (158 °F) |
| Service Life (L10 at 40°C) | 85000 h |
| Standards & Compliance | UL, RoHS3 Compliant |
Applications
The ebm-papst 632NU axial fan provides essential localized heat dissipation for mission-critical industrial electronics deployed in extreme or washdown environments. It is routinely integrated into sealed outdoor telecom base stations, harsh-duty industrial networking switches, marine navigational instrumentation, and ruggedized edge computing enclosures. Maintenance personnel and OEM engineers also select this unit for mobile robotics, medical analytical apparatus, and process control cabinets requiring dependable forced-air cooling resistant to particulate contamination.
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