The **W2AC-AB1A-R2/N** is a specific model identifier typically associated with **Industrial Cooling Fans**, most notably manufactured by companies like **Fulltech Electric** or similar thermal management specialists. These are heavy-duty AC axial fans designed for industrial cabinets, server racks, and power supplies. --- ### 1. Technical Specifications The part number breakdown usually indicates the physical size, motor type, and electrical characteristics. | Feature | Specification (Typical for this series) | | :--- | :--- | | **Input Voltage** | 115V AC or 230V AC (Model dependent) | | **Frequency** | 50/60 Hz | | **Size** | 120mm x 120mm x 38mm (Standard Industrial Square) | | **Bearing Type** | Dual Ball Bearing (Long life) | | **Housing Material** | Die-cast Aluminum | | **Impeller Material** | Thermoplastic (PBT) or Metal | | **Termination** | Terminals or Lead Wires | --- ### 2. Key Electronic Components Inside this unit, several critical electronic parts ensure efficient operation and safety: #### A. The Shaded Pole or Capacitor-Run Motor * **Stator Windings:** Copper coils that create the electromagnetic field. The "AC" in the part number indicates it runs directly on alternating current without an internal DC converter. * **Rotor:** A permanent magnet or squirrel-cage rotor that reacts to the stator's field to produce rotation. #### B. Protection Mechanisms * **Impedance Protection:** Most "W2AC" series fans are impedance protected. This means that if the fan blade is blocked (locked rotor), the internal resistance of the coils prevents the motor from overheating and catching fire. * **Thermal Cut-off (Optional):** Some variants include a thermal fuse that breaks the circuit if the internal temperature exceeds safety limits. #### C. Bearing System * **Dual Ball Bearings:** The "R2" suffix often denotes a specific bearing grade. Ball bearings allow the fan to be mounted in any orientation (vertical or horizontal) and provide a MTBF (Mean Time Between Failure) of approximately 50,000 to 70,000 hours. --- ### 3. Part Number Suffix Breakdown * **W2AC:** Series designation (AC Axial Fan). * **AB1A:** Power and Speed rating (High airflow/High static pressure). * **R2:** Revision code or specific Bearing/Leadwire configuration. * **N:** Environmentally protected or RoHS compliant version. --- ### 4. Implementation Example (Wiring) Since this is an AC fan, it does not require a complex driver. Basic connection is as follows: ```markdown L (Line) ----[ Switch/Fuse ]----( Terminal 1 ) N (Neutral) ---------------------( Terminal 2 ) G (Ground) ---------------------( Fan Frame ) ```