The **W2AP-D15-R2/UL** is a high-performance, industrial-grade AC axial fan manufactured by **Orion Fans**. It is specifically designed for thermal management in environments requiring high reliability and safety certifications. --- ### 1. Key Technical Specifications The following table summarizes the primary electronic and physical characteristics of this component: | Feature | Specification | | :--- | :--- | | **Input Voltage** | 230V AC (50/60Hz) | | **Power Rating** | 15 Watts | | **Current (Amp)** | ~0.10 A | | **Speed (RPM)** | 2700 - 3100 RPM | | **Airflow (CFM)** | 22 - 31 CFM | | **Noise Level** | 36 - 40 dB | | **Bearing Type** | Dual Ball Bearing | | **Safety Listing** | UL (Underwriters Laboratories) Recognized | --- ### 2. Internal Electronic Components The "electronics" of an AC fan like the W2AP-D15-R2/UL are focused on motor efficiency and safety rather than complex logic circuits: * **Shaded Pole Motor:** This is a self-starting induction motor. It uses a copper "shading coil" to create a rotating magnetic field, making it highly durable as it lacks brushes that wear out. * **Impedance Protection:** The "R2" designation often implies the motor is impedance-protected. If the fan blades are blocked (locked rotor), the internal impedance of the windings prevents the motor from drawing enough current to catch fire. * **Dual Ball Bearings:** Unlike sleeve bearings, dual ball bearings allow for operation at higher temperatures and provide a longer MTBF (Mean Time Between Failures), typically exceeding 60,000 hours. * **Terminations:** This specific model usually features **Lead Wires** (UL1007, 22 AWG) for direct electrical connection to a power source. --- ### 3. Material Construction The durability of the electronic assembly is supported by its housing: 1. **Frame:** Die-cast aluminum with a black finish (acts as a heat sink for the motor). 2. **Impeller:** PBT (Polybutylene Terephthalate), UL94V-0 plastic (flame retardant). 3. **Insulation Resistance:** Minimum of 100M ohm between the frame and terminal (at 500V DC). --- ### 4. Dimensional Data * **Size:** 80mm x 80mm * **Thickness:** 38mm (The "D" in the part number often refers to the depth/thickness).