The **W2TG0-2AC-R2** is a high-performance, industrial-grade **AC Axial Fan** manufactured by **ebm-papst**. It is part of the W2T series, specifically designed for thermal management in server racks, control cabinets, and telecommunications equipment. --- ## 1. Technical Specifications The following table outlines the core electronic and mechanical characteristics of the W2TG0-2AC-R2: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 230 V AC | | **Frequency** | 50 / 60 Hz | | **Power Consumption** | ~11 - 12 Watts | | **Current Draw** | ~0.05 - 0.07 Amps | | **Speed (RPM)** | 2,700 - 3,000 RPM | | **Airflow** | ~18 - 21 CFM (Cubic Feet per Minute) | | **Bearing Type** | Ball Bearing (High Reliability) | | **Noise Level** | ~33 - 35 dB(A) | --- ## 2. Key Electronic Components ### A. Induction Motor Design The unit utilizes an **external rotor shaded-pole motor**. This design is highly efficient for AC applications because: * The rotor is positioned on the outside of the stator. * This allows the fan blades to be integrated directly into the rotor, facilitating superior cooling of the motor coils themselves. ### B. Electrical Connectivity * **Termination:** The "R2" suffix typically denotes the connector or lead-wire configuration. It usually features 2-wire leads (Live and Neutral) for direct AC mains connection. * **Insulation Class:** Rated as **Class B**, meaning the internal electronics and winding insulation can withstand temperatures up to 130°C. ### C. Protection Circuitry * **Impedance Protection:** The motor is protected against "locked rotor" conditions. If the fan blades are obstructed, the internal impedance of the windings prevents the current from rising to a level that would cause a fire or melt the insulation. * **Grounding:** The housing is typically made of die-cast aluminum, which acts as a heat sink and includes a grounding point for safety. --- ## 3. Application Use Cases Due to its robust electronic design, this part is commonly used in: 1. **Power Supply Units (PSUs):** To dissipate heat from high-voltage transformers. 2. **Network Switches:** Constant operation in data center environments. 3. **Medical Equipment:** Where low noise and high reliability are critical.