The **FVF-05W-R** is a specific model of an **Industrial Cooling Fan**, typically manufactured by brands like **Fulltech Electric**. It is a high-performance AC axial fan designed for heat dissipation in electrical enclosures, server racks, and industrial machinery. Below is a detailed breakdown of its electronic and mechanical specifications. --- ### 1. Technical Specifications | Feature | Specification (Typical) | | :--- | :--- | | **Input Voltage** | 115V AC (Standard for '05' series) | | **Frequency** | 50 / 60 Hz | | **Current / Wattage** | Approx. 0.20A / 15W - 20W | | **Bearing Type** | Dual Ball Bearing (indicated by 'B' or high-reliability series) | | **Frame Size** | 120mm x 120mm x 38mm | | **Speed** | 2,600 - 3,000 RPM | | **Airflow** | ~100 - 110 CFM | | **Termination** | Lead Wires (R-type often denotes wire leads) | --- ### 2. Internal Electronic Components The FVF-05W-R is an **AC Induction Motor** fan. Unlike DC fans that use a PCB with a hall-effect sensor, this AC fan relies on simpler, more robust electromagnetic components: * **Stator Windings:** Copper coils wound around a laminated steel core. These create the rotating magnetic field when AC current is applied. * **Shaded Pole or Capacitor Start:** Depending on the specific sub-design, it uses a shaded-pole motor structure which is highly reliable and has no electronic parts that can "burn out" easily. * **Impedance Protection:** The "R" in the series often signifies a level of protection. The motor is **Impedance Protected**, meaning if the fan blades are blocked (locked rotor), the internal resistance of the coils prevents the motor from overheating or catching fire. * **Insulation Class:** Usually Class B or Class F, rated to withstand temperatures up to 130°C–155°C. --- ### 3. Structural Design Features * **Housing:** Die-cast aluminum frame. This acts as a heat sink for the motor and provides structural rigidity. * **Impeller:** Typically made of PBT thermoplastic (UL 94V-0 rated) to ensure it is flame retardant. * **Dual Ball Bearings:** These are used to ensure a long service life (typically 50,000+ hours) and allow the fan to be mounted in any orientation (horizontal, vertical, or angled). --- ### 4. Part Number Decoding (General) | Segment | Meaning | | :--- | :--- | | **FVF** | Fulltech Ventilation Fan Series | | **05** | Voltage Code (Often 115V; whereas 11 is 115V and 23 is 230V) | | **W** | Wire Lead connection (vs. Terminal type) | | **R** | Specific revision or special protection (Impedance/Thermal) | ---