The **W2TG0-2B2-R2/UL** is a high-performance AC axial fan manufactured by **Nidec (formerly Nidec Servo)**. It is part of the "W2" series, specifically designed for industrial cooling applications where reliability and high airflow are required. --- ### 1. Key Technical Specifications The following table outlines the core electronic and physical characteristics of this specific model: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 200V AC (Standard Range: 180V - 220V) | | **Frequency** | 50 / 60 Hz | | **Current Consumption** | ~0.11A (at 50Hz) / ~0.10A (at 60Hz) | | **Power Input** | ~17W to 19W | | **Rotational Speed** | ~2,700 RPM (50Hz) / ~3,100 RPM (60Hz) | | **Airflow Capacity** | Approx. 88 - 102 CFM | | **Noise Level** | ~42 dB(A) | | **Bearing Type** | Dual Ball Bearing (for long life) | | **Frame Size** | 120mm x 120mm x 38mm | | **Termination** | Lead Wires (UL standard) | --- ### 2. Breakdown of the Part Number The alphanumeric string provides specific details about the fan's construction: * **W2**: Series designation (Heavy-duty AC axial fan). * **T**: Likely indicates a "Thermal" or specific frame characteristic. * **G0**: Internal design code for frame/blade geometry. * **2B2**: Indicates the voltage rating (200V class) and speed/performance tier. * **R2**: Revision code or specific motor winding configuration. * **UL**: Indicates the unit is **UL Certified** (Underwriters Laboratories), meeting strict safety standards for the North American market. --- ### 3. Electronic Features & Construction * **Shaded Pole Motor:** This fan typically utilizes a shaded pole AC induction motor. This design is preferred for its simplicity, durability, and lack of brushes that wear out. * **Impedance Protection:** The motor is electronically protected against burnout. If the fan blades are locked/obstructed, the impedance of the windings prevents the current from rising to a level that would cause a fire or permanent damage. * **Die-cast Aluminum Housing:** The outer frame acts as a heat sink for the motor windings, allowing for continuous operation in high-temperature environments. * **Ball Bearing System:** Unlike cheap sleeve bearings, the dual ball bearing system allows for mounting in any orientation (vertical or horizontal) and provides a longer MTBF (Mean Time Between Failure). --- ### 4. Typical Applications Due to its 200V rating and UL certification, this part is commonly found in: 1. **Industrial Control Panels:** Cooling high-voltage switchgear. 2. **Server Racks:** Used in regions where 200V-240V power distribution is standard. 3. **Medical Equipment:** Large diagnostic machines requiring steady airflow. 4. **Power Supplies:** Heat dissipation for high-wattage converters.