The **W2CE-521-R2/UL** is a high-performance, industrial-grade AC axial fan manufactured by **Wintech** (often associated with the Orion Fans or similar industrial cooling brands). The "UL" suffix indicates it is certified by Underwriters Laboratories for safety standards. --- ### 1. Technical Specifications The following table summarizes the core electronic and mechanical characteristics of this component: | Feature | Specification | | :--- | :--- | | **Input Voltage** | 230V AC (Nominal) | | **Frequency** | 50 / 60 Hz | | **Power Consumption** | ~17 Watts | | **Rated Current** | 0.11 Amps | | **Speed (RPM)** | 2700 - 3000 RPM | | **Airflow (CFM)** | 85 - 105 CFM | | **Bearing Type** | Dual Ball Bearing | | **Termination** | Lead Wires (UL1007, 22AWG) | --- ### 2. Electronic Components & Design The internal circuitry and construction of the W2CE-521-R2/UL focus on longevity and thermal management: * **Motor Type:** Shaded Pole Induction Motor. This design is common in AC fans because it is brushless, highly reliable, and does not require complex electronic commutation (unlike DC fans). * **Insulation:** Class B insulation (rated for up to 130°C). This prevents the internal copper windings from short-circuiting under high-stress heat. * **Impedance Protection:** The motor is "Impedance Protected." If the fan blades are obstructed (locked rotor), the internal resistance of the windings prevents the motor from drawing enough current to catch fire or melt. * **Dual Ball Bearings:** Unlike sleeve bearings, dual ball bearings allow the fan to be mounted in any orientation (horizontal, vertical, or angled) without affecting the lifespan or noise levels. --- ### 3. Physical Dimensions & Build The "521" series generally follows the industry-standard frame size for high-capacity cooling: * **Frame Size:** 120mm x 120mm x 38mm. * **Frame Material:** Die-cast Aluminum (provides excellent heat dissipation and structural rigidity). * **Impeller Material:** PBT Thermoplastic (UL94V-0 rated flame retardant). --- ### 4. Typical Applications Because of its high voltage (230V) and rugged construction, this part is typically found in: 1. **Server Cabinets:** For exhausting hot air from rack-mounted equipment. 2. **Industrial Control Panels:** Cooling PLCs and power supplies. 3. **HVAC Equipment:** Used as a booster or exhaust fan in small climate control systems. 4. **Medical Devices:** In large diagnostic machines requiring constant airflow.