The **W2VS-1AY-R** is a specific model of an **AC/DC Cooling Fan**, typically manufactured by Sanyo Denki (San Ace series) or similar industrial thermal management suppliers. This part belongs to the category of high-reliability, long-life industrial fans designed for electronic cabinets and server racks. --- ### 1. Technical Specifications The following table highlights the core electronic and physical attributes of the W2VS-1AY-R: | Attribute | Specification | | :--- | :--- | | **Voltage Type** | AC (Alternating Current) | | **Nominal Voltage** | 100V / 115V (Dual Range) | | **Frequency** | 50 / 60 Hz | | **Dimensions** | 120mm x 120mm x 38mm (Standard Square) | | **Bearing Type** | Dual Ball Bearing (High Durability) | | **Frame Material** | Aluminum Die-cast (Metallic) | | **Impeller Material** | Plastic (UL 94V-0 Rated) | | **Termination** | Lead Wires or Terminals (Model dependent) | --- ### 2. Internal Electronic Components The "R" suffix in the part number often signifies compliance with specific safety standards or environmental regulations (like RoHS). Internally, the fan consists of several key electronic parts: #### A. Shaded-Pole or Capacitor-Run Motor * **Stator Winding:** High-purity copper coils that create the electromagnetic field. * **Rotor:** A permanent magnet or induction rotor that interacts with the stator's field to produce torque. #### B. Protection Circuitry * **Impedance Protection:** Most AC fans in this series are "Impedance Protected." If the fan blade is physically blocked (locked rotor), the internal impedance of the windings prevents the current from rising to a level that would cause a fire or melt the insulation. * **Thermal Protection:** Some variants include a thermal cutoff that disconnects power if the internal temperature exceeds a safe threshold. #### C. Bearing System * **Dual Ball Bearings:** Unlike sleeve bearings, these use steel balls to reduce friction. This allows the fan to be mounted in any orientation (horizontal, vertical, or angled) without affecting lifespan. --- ### 3. Application and Usage Because of its aluminum frame and high-voltage rating, this part is used in: 1. **Industrial Control Panels:** Cooling PLCs and power supplies. 2. **Server Cabinets:** Exhausting heat from high-density computing units. 3. **Medical Equipment:** Reliable cooling for diagnostic machines. 4. **Power Inverters:** Managing heat in large-scale energy conversion systems. --- ### 4. Wiring Identification | Wire Color | Function | | :--- | :--- | | **Black / Black** | AC Input (Non-polarized for basic AC models) | | **Green/Yellow** | Ground (Chassis Earth - attached to the metal frame) |