The part number **W2AC-A3AD-R** refers to a high-performance, industrial-grade **AC Axial Fan** manufactured by **Sanyo Denki** (San Ace series). This component is designed for thermal management in telecommunications, servers, and industrial control panels. Below is a detailed breakdown of its electronic and mechanical specifications. ### 1. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 200V / 230V AC (Dual Rated) | | **Frequency** | 50 / 60 Hz | | **Current** | Approx. 0.05A to 0.09A (varies by voltage/Hz) | | **Input Power** | ~11W to 15W | | **Rated Speed** | 2,700 to 3,100 RPM | | **Air Flow** | ~25.4 to 30.0 CFM (Cubic Feet per Minute) | | **Noise Level** | ~34 to 38 dB(A) | | **Bearing Type** | Dual Ball Bearing | | **Termination** | Lead Wires (Standard) | --- ### 2. Component Features * **Motor Design:** Shaded-pole motor construction or capacitor-run induction motor (depending on the specific revision), optimized for long-term continuous operation. * **Protection Mechanism:** Built-in **Impedance Protection**. This ensures that even if the fan blades are locked (stalled), the motor windings will not burn out due to excessive heat. * **Frame and Impeller:** * **Frame:** Aluminum die-cast (provides durability and heat dissipation). * **Impeller:** Plastics (UL 94V-0 rated for flame retardancy). * **Durability:** Designed for an "L10" life expectancy of approximately 40,000 to 60,000 hours at 40°C, meaning 90% of units will still be operational after this period. --- ### 3. Part Number Decoding (San Ace Logic) While Sanyo Denki has various naming conventions, the codes generally break down as follows: | Code | Meaning | | :--- | :--- | | **W2** | Frame Size (typically 80mm x 80mm or 92mm x 92mm series) | | **AC** | Power source type (Alternating Current) | | **A3** | Voltage Rating (200V-230V class) | | **AD** | Speed/Performance tier | | **-R** | RoHS Compliant / Revision code | --- ### 4. Applications * **Power Supplies:** Cooling high-voltage transformers. * **Server Racks:** Maintaining airflow in enclosed cabinets. * **Industrial Machinery:** Cooling CNC controllers or PLC units. * **Vending Machines:** Air circulation for internal electronics. ---