The **W2AC-A11Y-R** is a specific model within the **W2 Series** of axial fans manufactured by **Sanyo Denki** (San Ace). It is a high-performance, long-life cooling solution designed for industrial equipment. --- ## 1. Technical Specifications The following table outlines the primary electrical and mechanical characteristics of the W2AC-A11Y-R: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 100V AC (Standard Domestic/Industrial AC) | | **Frequency** | 50 / 60 Hz | | **Power Consumption** | ~11W (at 50Hz) / ~9W (at 60Hz) | | **Rated Current** | 0.14A (at 50Hz) / 0.11A (at 60Hz) | | **Speed** | 2,700 RPM (50Hz) / 3,100 RPM (60Hz) | | **Max Airflow** | 2.5 m³/min (88 CFM) | | **Noise Level** | ~40 - 44 dB(A) | | **Dimensions** | 120mm x 120mm x 38mm | | **Bearing Type** | Dual Ball Bearing | --- ## 2. Key Electronic & Structural Components ### A. Induction Motor (AC) Unlike DC fans that use brushless DC (BLDC) controllers, the W2AC-A11Y-R utilizes a **Shaded Pole Induction Motor** or a **Capacitor-run Motor** (depending on the specific internal winding). * **Voltage Handling:** It is built to handle the 100VAC sine wave directly. * **Thermal Protection:** Typically includes an internal "Impedance Protection" or "Thermal Protector" to prevent the coils from burning out if the fan is physically locked (stalled). ### B. Bearing System It utilizes a **Dual Ball Bearing** system. * **Life Expectancy:** Usually rated for 25,000 to 40,000 hours at 60°C. * **Performance:** Ball bearings allow the fan to be mounted in any orientation (horizontal, vertical, or angled) without affecting the lifespan. ### C. Housing and Impeller * **Frame:** Typically made of **Die-cast Aluminum**. This acts as a heat sink for the motor coils, ensuring the heat generated by the AC induction process is dissipated. * **Impeller:** Usually made of UL94V-0 rated flame-retardant plastic. --- ## 3. Wiring and Connection The suffix **"-R"** often denotes specific lead wire configurations or RoHS compliance standards in Sanyo Denki's catalog. ```yaml Wiring_Type: Lead Wires (usually 2 wires) Wire_Color_Coding: - Black: Line (AC) - Black: Neutral (AC) Note: Since it is AC, polarity is not strictly directional for rotation, but grounding the frame is recommended for safety. ``` --- ## 4. Safety Standards The electronic design is certified under various global safety bodies to ensure it does not cause electrical fires or interference: * **UL/cUL:** Recognized for US and Canadian markets. * **TUV/VDE:** European safety certifications. * **RoHS:** Compliant with restrictions on hazardous substances.