The **W2AC-A2BA-R2** is a specific part number typically associated with high-performance AC axial fans, often manufactured by brands like **Sanyo Denki** (San Ace series) or similar industrial thermal management providers. Below is a breakdown of its electronic and physical characteristics based on standard industrial naming conventions for this series. --- ## 1. Technical Specifications The following table outlines the typical electrical and mechanical parameters for this component: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 230V AC (50/60 Hz) | | **Current Rating** | ~0.08A to 0.12A (varies by frequency) | | **Power Consumption** | ~15W to 20W | | **Speed (RPM)** | 2,700 - 3,100 RPM | | **Airflow Capacity** | ~50 - 65 CFM (Cubic Feet per Minute) | | **Bearing Type** | Dual Ball Bearing (for long life) | | **Housing Material** | Aluminum Die-cast | | **Termination** | Lead Wires (usually R-series denotes wire type) | --- ## 2. Component Composition The "W2AC" series is built using several key electronic and structural parts: ### A. The Induction Motor * **Shaded Pole or Capacitor-run:** Uses an AC induction motor design which is brushless, reducing wear and electrical noise. * **Stator & Rotor:** Features high-grade silicon steel laminations to minimize eddy current losses and heat generation. ### B. Thermal Protection * **Impedance Protection:** Most R2 models are impedance protected. If the fan blades are locked/stalled, the internal resistance of the windings prevents the motor from burning out by limiting the current flow. ### C. Bearing System * **Dual Ball Bearings:** Unlike sleeve bearings, ball bearings allow for the fan to be mounted in any orientation (horizontal, vertical, or angled) without affecting the lifespan, which is typically rated for over 40,000 hours at 40°C. --- ## 3. Part Number Breakdown (Nomenclature) Industrial parts like this follow a logic-based naming system: 1. **W2AC:** Series designation (AC Axial Fan). 2. **A2BA:** Specific frame size and voltage code (Standardly 120mm x 120mm x 38mm). 3. **R2:** Revision or Termination code (indicates specific wiring leads or safety certifications like UL/CSA/TUV). --- ## 4. Typical Applications * **Server Racks:** Cooling for high-density computing. * **Control Cabinets:** Heat dissipation for PLCs and industrial power supplies. * **Medical Equipment:** Reliable cooling for diagnostic machines. * **HVAC Systems:** Small-scale air circulation.