The **W2AC-A11Y-R2/Q** is a specific variant of an industrial-grade AC cooling fan, typically manufactured by companies like **Wintek** or **Fulltech**. This model belongs to the series of AC axial fans used for thermal management in server racks, control cabinets, and industrial machinery. Below is a breakdown of its electronic and mechanical specifications: ### 1. Technical Specifications | Feature | Description | | :--- | :--- | | **Input Voltage** | 220V - 240V AC (50/60 Hz) | | **Current Draw** | Approximately 0.12A to 0.14A | | **Power Consumption** | ~20W - 22W | | **Speed** | 2,500 - 3,000 RPM (Rotations Per Minute) | | **Airflow** | High-volume axial displacement | | **Bearing Type** | Dual Ball Bearing (Indicated by the "B" or "2" in specific codes) | | **Termination** | Lead Wires or Terminals (typically R2 denotes a specific lead length/type) | --- ### 2. Key Electronic Components The internal construction of the W2AC-A11Y-R2/Q involves several critical electronic parts: * **Shaded Pole Motor:** This is an asynchronous single-phase induction motor. It uses a copper "shading ring" around part of each pole to create a rotating magnetic field, allowing the fan to start spinning upon receiving AC power. * **Stator Windings:** High-quality copper coils insulated with Class B or Class F materials to withstand heat. * **Impedance Protection:** Most "A11Y" models are **Impedance Protected**. This means the motor is designed so that if the fan blade is jammed, the heat generated by the coils will not reach a level that causes a fire or total component failure. * **Capacitor (Internal):** Depending on the exact sub-variation, it may use a permanent split capacitor to improve efficiency and torque. --- ### 3. Model Number Nomenclature Breakdown While manufacturers vary slightly, the code generally follows this logic: | Code Segment | Meaning | | :--- | :--- | | **W2 / 120** | Dimensions (usually 120mm x 120mm x 38mm) | | **AC** | Power source (Alternating Current) | | **A11** | Voltage identifier (110V/220V series) | | **Y** | Speed/Performance tier (High Speed) | | **R2 / Q** | Revision code, Lead wire configuration, or "Quiet" specification | --- ### 4. Safety and Environmental Features * **Housing:** Die-cast aluminum alloy (acts as a heat sink for the motor). * **Impeller:** Thermoplastic PBT (UL94V-0 rated), which is flame retardant. * **Dielectric Strength:** Usually rated to withstand 1500V AC for 1 minute between the frame and the terminals.