The **W2AC-AD3B-R2** is a specific industrial-grade AC axial fan manufactured by **Wintech (or equivalent cooling solution providers)**. This model is commonly used in server racks, industrial control cabinets, and power supply cooling systems. --- ### 1. Technical Specifications The following table highlights the core electronic and mechanical parameters of the device: | Feature | Specification | | :--- | :--- | | **Input Voltage** | 220V - 240V AC | | **Frequency** | 50 / 60 Hz | | **Current Consumption** | Approx. 0.12A to 0.14A | | **Power Rating** | 18W - 22W | | **Rotation Speed** | 2,500 - 3,000 RPM | | **Bearing Type** | Dual Ball Bearing (indicated by "B" in suffix) | | **Housing Material** | Die-cast Aluminum | | **Termination** | Lead Wires (R2 often denotes wire configuration) | --- ### 2. Electronic Component Breakdown The W2AC-AD3B-R2 consists of several critical electronic sub-assemblies that allow it to operate directly from a wall outlet or industrial AC bus: #### A. Shaded-Pole or Capacitor-Run Motor As an AC fan, it utilizes an induction motor. * **Stator:** Fixed copper windings that create a rotating magnetic field when AC current passes through. * **Rotor:** A permanent magnet or induction cage integrated into the fan blade hub. #### B. Dual Ball Bearing System The "B" in the model name signifies **Ball Bearings**. * **Electronic Impact:** Ball bearings reduce friction compared to sleeve bearings, leading to lower heat generation and a longer Mean Time Between Failures (MTBF), typically rated at 50,000+ hours. #### C. Thermal Protection Most R2 series fans include an internal **Impedance Protection** or a thermal fuse. This prevents the electronic windings from catching fire if the fan blades are physically obstructed (locked rotor). #### D. Dielectric Strength The electronics are designed to withstand high voltage spikes common in industrial environments. It usually features an insulation resistance of 100M $\Omega$ or more at 500V DC between the frame and the terminals. --- ### 3. Wiring Diagram Logic While specific colors can vary by batch, the standard R2 wiring follows this logic: ```yaml Wire 1 (Black/Brown): Live (L) - 220V AC Wire 2 (Black/Blue): Neutral (N) Frame/Housing: Ground (GND) - via mounting screw ``` --- ### 4. Common Applications * **Enclosure Cooling:** Dissipating heat from PLC units. * **Networking:** Cooling 19-inch rack-mount equipment. * **Power Supplies:** Secondary cooling for high-wattage AC/DC converters.