W4E300-CP02-31 ebm-papst 300mm Axial Fan 230V

W4E300-CP02-31: High-Efficiency Enclosure Cooling

The W4E300-CP02-31 is a premium 300mm axial fan designed for efficient heat dissipation in industrial control panels and refrigeration units. Part of the specialized CP series, this fan features an integrated wall ring that streamlines the airflow, reducing turbulence and noise. Powered by a single-phase 230V AC motor, it is the ideal choice for applications where 3-phase power is not available but high-performance cooling is required. The external rotor motor design ensures that the unit remains compact, facilitating installation in shallow housings where space is at a premium. The blades are manufactured from high-grade sheet steel, painted black to resist corrosion and ensure long-term durability in industrial environments.

Technical Characteristics

• Diameter: 300 mm.
• Voltage: 230 VAC (Single-phase).
• Motor: M4E068-CF.
• Protection: IP44.
• Capacitor: Typically requires a 3 µF / 400 VDB capacitor.

Field Engineering & Reliability

Lifecycle State: Active. This is a very common part in the Birmingham area for machine tool cooling and smaller HVAC condensers. Diagnosis Tips: The most frequent cause of failure is the degradation of the external capacitor. If the fan hums but does not start, replace the capacitor first. Installation Advice: Verify that the terminal box is sealed correctly to prevent moisture ingress, especially in humid production environments. Compatibility: Fully compatible with Siemens SIMATIC controllers. It can be speed-controlled using triac-based controllers or integrated into systems programmed with WinCC for automated environmental monitoring.

Maintenance Tip

Check the fan blades every six months for dust accumulation. Even a thin layer of grime can unbalance the 300mm impeller, leading to increased bearing noise and heat.

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