The **W2PE-5ZA-R2** is a specialized high-performance cooling fan component, typically manufactured by **Sanyo Denki** (San Ace series). It is an AC-powered axial fan designed for industrial environments requiring high reliability and high airflow. --- ### 1. Technical Specifications The following table highlights the core electronic and physical attributes of the W2PE-5ZA-R2: | Feature | Specification | | :--- | :--- | | **Input Voltage** | 200V - 230V AC | | **Frequency** | 50 / 60 Hz | | **Power Consumption** | Approximately 40W - 55W (model dependent) | | **Rotation Speed** | ~2,700 - 3,100 RPM | | **Airflow Rate** | High Volume (approx. 150 - 200 CFM) | | **Bearing Type** | Dual Ball Bearing | | **Frame Material** | Die-cast Aluminum | --- ### 2. Electronic Components & Design The internal architecture of this part includes several critical electronic elements: #### A. The Induction Motor * **Type:** Permanent Split Capacitor (PSC) or Shaded Pole motor (standard for AC axial fans). * **Winding:** Copper windings with high-temperature insulation class (usually Class B or F) to prevent short-circuiting under continuous heavy loads. #### B. Bearings and Protection * **Dual Ball Bearings:** These are used to minimize friction and handle the thermal expansion caused by the internal motor heat. * **Thermal Protection:** Most "R2" revisions include an **Impedance Protection** or **Thermal Cut-off** feature. If the fan blades are locked (stalled), the electronic impedance prevents the motor from drawing enough current to catch fire. #### C. Power Interface * **Connection:** Usually features lead wires or terminal lugs. * **Capacitor:** Requires an external or integrated starting capacitor to phase-shift the AC current and generate starting torque. --- ### 3. Application Areas Due to its rugged aluminum construction and high voltage rating, it is commonly found in: 1. **Server Cabinets:** For rapid heat dissipation in data centers. 2. **Industrial Machinery:** Cooling CNC controllers or power supplies. 3. **HVAC Systems:** Small-scale ventilation and exhaust for electronic enclosures. --- ### 4. Part Number Breakdown (Typical) While naming conventions vary, the suffix codes often signify specific electronic variations: * **W2:** Series indicator (often waterproof or weather-resistant series). * **5ZA:** Size and Power rating code. * **R2:** Specific revision code (often indicating a change in the lead wire material or bearing manufacturer).