The **W2AC-A11Y-R2** is a specific model of an AC axial fan, typically manufactured by **Fulltech Electric**. These fans are widely used in industrial cabinets, server racks, and cooling systems for power supplies. --- ### 1. Key Technical Specifications The model name follows a specific nomenclature that defines its electronic and physical characteristics: | Specification | Details | | :--- | :--- | | **Input Voltage** | 115V AC (Standard US Voltage) | | **Frequency** | 50/60 Hz | | **Bearing Type** | Dual Ball Bearing (High durability) | | **Input Power** | ~20W - 22W (Varies by frequency) | | **Airflow** | High Volume (approx. 90-100 CFM) | | **Housing Material** | Die-cast Aluminum | | **Impeller Material** | Thermoplastic (PBT) | --- ### 2. Internal Electronic Components The "electronic parts" within this fan assembly are designed to convert AC input into mechanical rotation with high efficiency and safety. #### A. Shaded Pole Induction Motor The heart of the fan is a **single-phase AC shaded pole motor**. * **Stator:** Consists of copper windings wrapped around a laminated steel core. * **Rotor:** A permanent magnet or squirrel-cage rotor that reacts to the electromagnetic field created by the stator. #### B. Thermal Protection (Internal Fuse) Most "R2" series fans include **Impedance Protection** or a thermal cutout. * **Function:** If the fan blades are obstructed (locked rotor), the internal resistance prevents the windings from drawing too much current and catching fire. #### C. Termination Type (Lead Wires or Terminals) The "A11Y" designation often refers to the connection style: * **Lead Wires:** Typically two insulated wires (Black/Red or Black/Black) for direct hard-wiring into a power source. * **Capacitor (Internal):** In some AC fans, a small internal capacitor is used to shift the phase of the current to ensure the motor starts in the correct direction. --- ### 3. Mechanical & Environmental Features While not "electronic" in the sense of microchips, these components are critical to the electrical performance: * **Dual Ball Bearings:** These provide the lowest friction for the electronic motor, extending the lifespan to approximately 50,000+ hours at 25°C. * **Dielectric Strength:** The insulation is rated to withstand high voltage (usually 1500V AC for 1 minute) to prevent electrical arcing to the metal frame. --- ### 4. Typical Applications * **Electrical Enclosures:** Preventing heat buildup in industrial control panels. * **HVAC Equipment:** Auxiliary cooling for heat exchangers. * **Power Supplies:** Active cooling for high-wattage rectifiers.