The **W2AC-A22D-R2/N** is a specific model identifier typically associated with **Delta Electronics** or similar industrial power supply/cooling manufacturers. Specifically, this part number refers to an **AC Axial Fan** often used in industrial enclosures and server racks. Below is a breakdown of its electronic and mechanical specifications. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Input Voltage** | 220V - 240V AC | | **Frequency** | 50/60 Hz | | **Current Rating** | ~0.11A to 0.14A (approximate) | | **Power Consumption** | ~20W - 22W | | **Speed (RPM)** | 2500 - 2900 RPM | | **Airflow Capacity** | 80 - 100 CFM | | **Bearing Type** | Dual Ball Bearing | | **Connection Type** | Lead Wires or Terminal (depending on suffix) | --- ### 2. Key Electronic Components The "Electronic Parts" within this assembly are designed for high durability and continuous operation: * **Shaded Pole or Capacitor-Run Motor:** The unit utilizes an AC induction motor. Unlike DC fans, these do not have a complex PCB controller but rely on the AC frequency to dictate speed. * **Thermal Protection:** Most models in this series include an **Impedance Protected** motor. If the blades are obstructed (Locked Rotor), the internal resistance prevents the coils from overheating and catching fire. * **Dual Ball Bearing System:** These are the mechanical-electronic interface components that ensure low friction. They are rated for L10 life (usually >50,000 hours at 40°C). * **Stator Coils:** High-grade copper windings insulated to withstand Class B or Class F temperature ratings. --- ### 3. Part Number Decoder While nomenclature varies by manufacturer, the code generally breaks down as follows: * **W2AC:** Series designation (likely 120mm x 120mm x 38mm form factor). * **A22:** Voltage indicator (220-240V). * **D:** Speed/Performance grade (usually High Speed). * **R2/N:** Revision code and Bearing/Lead-wire configuration. --- ### 4. Applications * **Server Racks:** Exhausting heat from high-density computing environments. * **Industrial Control Panels:** Cooling PLCs and VFDs. * **Power Supplies:** Integrated into large-scale rectifiers.