The **W2AC-AC2B-R/Q** is a high-performance **Centrifugal Fan** (often referred to as a "Blower") manufactured by **Wibeee** (or formerly Circutor). This specific model is designed for thermal management and cooling in industrial electronics, such as electrical cabinets, telecommunications racks, and power supplies. --- ### ## Technical Specifications Overview Below is a breakdown of the key electronic and physical characteristics: | Feature | Specification | | :--- | :--- | | **Input Voltage** | 230V AC (Standard Single Phase) | | **Frequency** | 50 / 60 Hz | | **Power Consumption** | Approx. 35W - 45W (varies by load) | | **Bearing Type** | Dual Ball Bearing (Long life/High reliability) | | **Impeller Material** | Plastic (UL 94V-0 reinforced) | | **Airflow Direction** | Centrifugal (Intake at center, exhaust at 90°) | | **Termination** | Lead Wires (R/Q suffix typically denotes wire configuration) | --- ### ### Key Electronic Components & Design #### 1. External Rotor Motor Unlike standard motors where the shaft spins inside a fixed shell, this part uses an **External Rotor** design. The copper windings are stationary (stator), and the permanent magnets/rotor spin on the *outside*. This allows for: * Compact size. * Better heat dissipation for the motor itself. * Higher torque for moving air against back-pressure. #### 2. Capacitor-Run Motor As an AC device, it typically utilizes a **Permanent Split Capacitor (PSC)** design. Inside the circuit, a motor-run capacitor is used to create a phase shift in the secondary winding, allowing the motor to start and run efficiently. #### 3. Integrated Protection The electronic assembly includes **Thermal Impedance Protection**. If the fan blades are obstructed (locked rotor) or the ambient temperature exceeds safety limits, the internal coil resistance prevents the motor from catching fire by limiting current draw. #### 4. Ball Bearing System The "B" in the part number often signifies **Ball Bearings**. Electronically, this reduces friction-related heat, ensuring the motor maintains a consistent RPM and current draw over its 50,000+ hour lifespan. --- ### ### Application Use Cases This part is commonly found in the following electronic environments: * **Variable Frequency Drives (VFDs):** Cooling the power transistors (IGBTs). * **Server Racks:** High-pressure air movement to clear heat from dense electronic components. * **Uninterruptible Power Supplies (UPS):** Maintaining safe operating temperatures for large internal transformers.