The **W2AC-AC2B-R2** is a specialized electronic component, typically categorized as a high-performance **AC Axial Fan** or cooling assembly, often used in industrial racks, power supplies, and telecommunications equipment. Below is the detailed breakdown of its electronic and mechanical specifications. --- ### 1. Technical Specifications Table | Feature | Specification Details | | :--- | :--- | | **Input Voltage** | 220V - 240V AC | | **Frequency** | 50 / 60 Hz | | **Power Consumption** | Approximately 20W - 30W (varies by load) | | **Bearing Type** | Dual Ball Bearing (for long life) | | **Housing Material** | Die-cast Aluminum / Magnesium Alloy | | **Impeller Material** | Reinforced Plastic (PBT) or Metal | | **Termination** | Lead Wires or Terminal Blocks (Model R2 specific) | --- ### 2. Key Electronic Components & Features The "R2" suffix in the part number often denotes a specific revision or a particular wiring configuration. Here are the core electronic attributes: * **Shaded Pole Motor:** These fans typically utilize a shaded-pole or permanent split capacitor AC motor. These are brushless, meaning they have high reliability and produce less electromagnetic interference (EMI). * **Impedance Protection:** The motor is electronically designed to prevent burnout if the fan blades are obstructed (locked rotor protection). It limits the current flow to prevent overheating. * **Insulation Class:** Usually rated at **Class B or Class F**, allowing the internal windings to withstand temperatures up to 130°C–155°C without failing. * **EMC Compliance:** Designed to operate in industrial environments without interfering with sensitive logic circuits nearby. --- ### 3. Mechanical & Environmental Characteristics * **Airflow Direction:** Usually "Exhaust" or "Intake" depending on mounting, but the blade curvature is optimized for high static pressure. * **Durability:** The use of **Dual Ball Bearings** allows the part to operate in any orientation (vertical, horizontal, or angled) with a mean time between failures (MTBF) often exceeding 50,000 hours. * **Operating Temperature:** Typically rated for **-20°C to +70°C**, making it suitable for outdoor cabinets or hot server rooms. --- ### 4. Typical Applications 1. **Server Racks:** Cooling high-density blade servers. 2. **Power Inverters:** Dissipating heat from large MOSFETs and transformers. 3. **Medical Equipment:** Reliable cooling for imaging and diagnostic hardware. 4. **CNC Machines:** Cooling the electronic control units (ECU) in industrial manufacturing. ---