The **W2AC-A13D-R2/N** is a specific model within a series of industrial-grade AC-powered cooling fans, typically manufactured by companies like **Nidec (Servo)** or similar industrial fan providers. These fans are engineered for high-reliability environments such as server racks, control cabinets, and power supplies. --- ### 1. Technical Specifications Overview The model nomenclature defines its electrical and physical characteristics. | Parameter | Specification | Details | | :--- | :--- | :--- | | **Input Voltage** | 100V - 115V AC | Standard single-phase AC power. | | **Frequency** | 50 / 60 Hz | Compatible with global power standards. | | **Current / Power** | ~0.20A / 15W - 20W | Varies slightly based on frequency (60Hz consumes more). | | **Bearing Type** | Dual Ball Bearing | Ensures long life (approx. 50,000+ hours). | | **Frame Material** | Aluminum Die-cast | Provides structural rigidity and heat dissipation. | | **Impeller Material** | Plastic (PBT) | UL94V-0 Flame Retardant. | --- ### 2. Key Electronic Components & Features #### A. Shaded Pole or Capacitor-Run Motor As an AC fan, this model typically utilizes a **Shaded Pole Induction Motor** or a small internal **Run Capacitor**. - **The Stator:** Consists of copper windings wrapped around a laminated steel core. - **The Rotor:** A squirrel-cage type rotor integrated into the fan blades. #### B. Thermal Protection (The "N" Suffix) The suffix `/N` often denotes **Impedance Protection**. - In the event of a "Locked Rotor" (where the blades are physically stuck), the internal impedance of the motor windings is high enough to prevent the temperature from rising to a point that would cause a fire, even without a thermal fuse. #### C. EMI Suppression Industrial AC fans often include basic internal filtering components to minimize **Electromagnetic Interference (EMI)**, ensuring the fan motor does not feed electrical noise back into the sensitive AC power line used by controllers or computers. --- ### 3. Wiring and Connection This model generally features a standard 2-wire or 3-wire lead configuration: | Wire Color | Function | Description | | :--- | :--- | :--- | | **Black** | Line (L) | Hot AC connection. | | **Black / White** | Neutral (N) | Common AC return. | | **Green/Yellow** | Ground (G) | Connected to the aluminum frame for safety (if 3-wire). | --- ### 4. Application Context Due to its rugged aluminum construction and high-quality ball bearings, the **W2AC-A13D-R2/N** is found in: 1. **Telecommunications Shelters:** Constant 24/7 cooling. 2. **CNC Machines:** Resisting vibration and high ambient temperatures. 3. **Medical Equipment:** Where low failure rates are mandatory. ---