The **W2TG0-3AB-R** refers to a high-performance, compact AC axial fan, typically manufactured by **Sanyo Denki** (San Ace series). It is specifically designed for high-density cooling in industrial and telecommunications equipment. --- ## 1. Technical Specifications The following table highlights the core electrical and physical parameters of the W2TG0-3AB-R: | Parameter | Specification | | :--- | :--- | | **Rated Voltage** | 230V AC | | **Operating Voltage Range** | 207V to 253V AC | | **Frequency** | 50/60 Hz | | **Input Power** | ~14W (at 60Hz) / ~16W (at 50Hz) | | **Rated Speed** | 2,700 to 3,100 RPM | | **Max Airflow** | ~28.2 to 33.5 CFM | | **Max Static Pressure** | 41.2 to 55.9 Pa | | **Noise Level** | ~36 to 40 dB(A) | | **Bearing Type** | Dual Ball Bearing | --- ## 2. Key Electronic Components & Design The device is more than just a motor; it incorporates several electronic design choices to ensure reliability: ### A. Shaded-Pole Induction Motor * **Mechanism:** It uses a shaded-pole motor design, which is common for small AC fans. It is simple, robust, and does not require a starting capacitor, reducing the risk of component failure. * **Thermal Protection:** These motors usually include an impedance protection or thermal cutoff to prevent fire if the rotor is locked (impedance-protected). ### B. Frame and Impeller Material * **Frame:** Aluminum die-cast. This acts as a heat sink for the motor windings and provides EMI shielding. * **Impeller:** Plastic (UL 94V-0 rated). The blades are aerodynamically shaped to reduce turbulence and acoustic noise. ### C. Bearing System * **Dual Ball Bearings:** Unlike sleeve bearings, double ball bearings allow the fan to be mounted in any orientation (horizontal, vertical, or angled) without affecting its lifespan, which typically exceeds 40,000 hours at 60°C. --- ## 3. Wiring and Connection The W2TG0-3AB-R usually features **Lead Wire** connections. * **Colors:** Standard wiring usually involves two lead wires for the AC power input. * **Grounding:** Since it has a metal frame, the housing should be properly grounded in industrial applications to prevent ESD (Electrostatic Discharge) or electrical shock. ---