The **W2CE-5A3-R2/UL** is a specific model of an AC axial cooling fan, typically manufactured by companies like **Wintek** or similar industrial thermal solution providers. These fans are designed for heavy-duty cooling in industrial cabinets, server racks, and power supplies. --- ### 1. Technical Specifications Below are the primary electronic and mechanical characteristics of the W2CE-5A3-R2/UL: | Property | Specification | | :--- | :--- | | **Input Voltage** | 220V - 240V AC | | **Frequency** | 50/60 Hz | | **Current Consumption** | Approx. 0.22A - 0.25A | | **Power Rating** | ~38W to 40W | | **Speed (RPM)** | 2700 - 3000 RPM | | **Bearing Type** | Dual Ball Bearing (Long life/High reliability) | | **Safety Certification** | UL (Underwriters Laboratories) Recognized | | **Termination** | Lead Wires (R2 indicates specific wiring/connector) | --- ### 2. Key Electronic Components #### A. Shaded Pole or Capacitor-Run Motor As an AC fan, it utilizes an induction motor. The "W2CE" series usually employs a permanent split capacitor or a shaded pole design to generate the starting torque necessary to rotate the blades using single-phase AC power. #### B. Dual Ball Bearing System The "R2" designation often refers to the internal bearing structure. Dual ball bearings are superior to sleeve bearings because: * They can operate at higher temperatures. * They support both horizontal and vertical mounting. * They offer a significantly higher MTBF (Mean Time Between Failures), often exceeding 50,000 hours. #### C. Thermal Protection The motor includes **impedance protection** or a thermal cutout. If the fan blades are obstructed (Locked Rotor), the electronic impedance of the windings prevents the motor from overheating and catching fire. #### D. Die-Cast Aluminum Housing While not "electronic," the frame acts as a massive heat sink for the motor windings, ensuring that the heat generated by the electrical resistance is dissipated efficiently. --- ### 3. Part Number Breakdown (Typical) * **W2CE**: Series identifier (usually 120mm x 120mm x 38mm frame size). * **5A**: Indicates the voltage class (220/240V AC). * **3**: Speed code (High Speed). * **R2**: Revision code or specific bearing/wiring configuration. * **UL**: Certified for safety standards in the US and Canada. --- ### 4. Application Use Cases 1. **Industrial Control Panels:** Moving stagnant air out of sealed electrical boxes. 2. **Server Enclosures:** Providing high-pressure airflow to cool dense electronics. 3. **Power Inverters:** Cooling large transformers and MOSFET heatsinks.