Technical Performance: W4E420-CP02-31 ebm-papst
The W4E420-CP02-31 is a high-performance 420mm axial fan, part of the ebm-papst series engineered for heavy-duty thermal management. This model is specifically designed for applications requiring high air flow rates combined with pressure stability, such as industrial condensers, dry coolers, and large-scale ventilation units. Utilizing a single-phase AC external rotor motor, the unit offers a compact axial depth, which is vital for space-constrained installations. The impeller features 5 blades made of sheet steel, optimized for low noise and high efficiency. The integration of the motor and impeller ensures optimal cooling of the electronics and mechanical parts during continuous operation.
Core Technical Specifications
- Impeller Diameter: 420 mm.
- Supply Voltage: 230 VAC (50/60 Hz).
- Motor Type: M4E094-EA high-torque motor.
- Airflow Direction: Exhaust over struts (Type V).
- Protection: IP44 (IP54 options available depending on installation).
Lifecycle & Maintenance for Engineers
Lifecycle State: This part is currently Active and is a critical spare part for HVAC systems and industrial machinery cooling. Diagnosis & Troubleshooting: Maintenance teams should monitor the starting capacitor (typically 8-10 µF). If the fan exhibits a slow start or humming without rotation, the capacitor is the primary suspect. Also, check for vibration; excessive shaking usually points to dust accumulation on the blades which can lead to bearing fatigue. Installation Tips: Ensure the condensation drainage holes are positioned at the lowest point of the motor mounting. Proper grounding is non-negotiable for industrial safety. Compatibility: Perfectly suited for Siemens TIA Portal environments where fan speed is managed through triac controllers or simple relay logic for on/off cycles based on process temperature.
| Metric | Performance Data |
|---|---|
| Speed (RPM) | 1320 – 1390 RPM |
| Airflow Max | 4500 m3/h |
| Power Input | 220 – 300 W |
| Operating Temp | -40°C to +60°C |
Maintenance FAQ
How to prevent premature failure? Perform bi-annual cleaning of the blades and check the integrity of the terminal box seals to prevent moisture ingress, which is the leading cause of winding failure in humid environments.
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