The **W2AC-A13D-R/Q** is a specific technical configuration for an industrial-grade AC cooling fan, manufactured by **Delta Electronics**. This series is widely used in server racks, power supply enclosures, and telecommunications equipment. --- ### 1. Technical Specifications Below is a breakdown of the primary electronic and physical characteristics: | Feature | Specification | | :--- | :--- | | **Input Voltage** | 220V - 240V AC | | **Frequency** | 50 / 60 Hz | | **Bearing Type** | Dual Ball Bearing (Enhanced Longevity) | | **Frame Material** | Die-cast Aluminum | | **Impeller Material** | Plastic (UL 94V-0 Rated) | | **Connection Type** | Lead Wires (R/Q Suffix variation) | | **Safety Approvals** | UL, TUV, CE | --- ### 2. Component Analysis (Suffix Breakdown) The model number contains specific identifiers for its electronic behavior: * **W2AC Series:** Indicates an AC axial fan designed for high-efficiency heat dissipation. * **-A13D:** Refers to the physical dimensions (typically 120mm x 120mm x 38mm) and the specific motor winding design. * **-R/Q:** * **R:** Often denotes "Rotation" or "Reverse" polarity protection/sensing features. * **Q:** Generally indicates a specific noise-reduction rating or a "Quiet" optimized blade geometry. --- ### 3. Key Electronic Features #### A. Dual Ball Bearing System Unlike sleeve bearings, the dual ball bearing system in this model is designed for continuous operation at high temperatures. It reduces friction, leading to a MTBF (Mean Time Between Failures) of approximately 50,000 to 70,000 hours. #### B. Shaded Pole Motor The internal motor is usually a **shaded-pole induction motor**. This design is electronically simple, making it highly reliable and resistant to electromagnetic interference (EMI). #### C. Thermal Protection The motor includes an **Impedance Protection** or **Thermal Link**. If the fan blades are obstructed (Locked Rotor), the electronic resistance increases to prevent the coils from overheating and catching fire. --- ### 4. Wiring and Implementation The device typically utilizes two or three lead wires: ```cpp // Standard Wire Color Coding (Variations may apply) Black/Brown -> Line (L) Blue/White -> Neutral (N) Green/Yellow -> Ground (GND - if applicable to frame) ```