The **W2VS-16115-R2/UL** is a high-performance **AC Axial Fan** manufactured by **Wintek** (often associated with industrial cooling solutions). This specific model is designed for high-reliability applications, such as server racks, industrial control panels, and power supplies. --- ### 1. Technical Specifications Below is a breakdown of the typical electronic and mechanical characteristics for this series: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 115V AC (Standard US Utility Power) | | **Frequency** | 50/60 Hz | | **Dimensions** | 172mm x 150mm x 51mm (Oval shape) | | **Bearing Type** | Dual Ball Bearing (High Durability) | | **Housing Material** | Die-cast Aluminum | | **Impeller Material** | Thermoplastic (PBT) UL94V-0 Rated | | **Safety Certification** | UL / CUL Recognized | --- ### 2. Key Electronic Components & Features #### A. The Motor Structure The "W2VS" designation refers to a **Shaded Pole Motor** or a **Permanent Split Capacitor (PSC)** motor design. These motors are brushless, which reduces electromagnetic interference (EMI) and extends the lifespan of the device since there are no brushes to wear out. #### B. Bearings (R2 Designation) The "R2" suffix typically indicates a **Dual Ball Bearing** system. * **Electronic Impact:** Ball bearings allow the fan to be mounted in any orientation (vertical or horizontal) without affecting the motor's current draw or heat generation. * **Lifespan:** Usually rated for >50,000 hours at 40°C. #### C. Thermal Protection This unit includes **Impedance Protection**. In the event that the fan blades are locked (preventing rotation), the internal coils are designed to resist overheating. The impedance of the motor windings limits the current flow to a level that prevents the insulation from melting or catching fire. #### D. Connection Interface The unit typically features **Terminals** or **Lead Wires**: * **Terminals:** Two flat spades for quick-connect lugs. * **UL Rating:** The "/UL" indicates the wiring and plastics meet strict Underwriters Laboratories fire safety and electrical insulation standards. --- ### 3. Application Use Cases Due to its 115V AC input and high CFM (Cubic Feet per Minute) output, it is commonly found in: * **Network Enclosures:** Cooling high-density switch stacks. * **Industrial Machinery:** Dissipating heat from CNC controllers. * **Power Inverters:** Managing thermal loads in large-scale UPS systems. ---