The **W2AC-A42C-R** is a specific model of an AC axial fan, typically manufactured by brands like **Wintech** or **Delta**, often used in industrial enclosures, server racks, and telecommunications equipment. Below is a breakdown of its electronic and mechanical specifications. --- ### 1. Technical Specifications This table outlines the primary electronic characteristics of the W2AC-A42C-R: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Input Voltage** | 220V - 240V AC | Standard high-voltage AC input | | **Frequency** | 50 / 60 Hz | Compatible with global power grids | | **Current Draw** | ~0.14A | Low power consumption for continuous duty | | **Input Power** | 22W - 25W | Energy-efficient cooling | | **Bearing Type** | Dual Ball Bearing | Long lifespan (approx. 50,000+ hours) | | **Speed** | 2,500 - 3,000 RPM | High-speed rotation for high static pressure | | **Airflow** | ~90 - 110 CFM | Cubic Feet per Minute | --- ### 2. Electronic Components & Design #### Motor Construction The unit utilizes an **AC Shaded-Pole Motor** or a **Permanent Split Capacitor (PSC) motor**. These are preferred in industrial fans because: * **Brushless Design:** No brushes to wear out, reducing electromagnetic interference (EMI). * **Impedance Protection:** The motor is electronically protected so that if the fan blades are obstructed (locked rotor), the coils will not burn out immediately. #### Wiring and Connection The "R" suffix in the model number often denotes the wiring configuration: * **Terminal Type:** It usually features two flat male terminals for quick-connect spade connectors. * **Grounding:** The aluminum housing typically includes a grounding point to prevent electrostatic discharge (ESD) and ensure safety in high-voltage environments. #### Housing and Material * **Frame:** Die-cast aluminum alloy (acts as a heat sink for the motor). * **Impeller:** Thermoplastic (PBT) or steel, usually rated UL94V-0 for flame retardancy. --- ### 3. Usage & Environmental Ratings | Feature | Rating | | :--- | :--- | | **Insulation Class** | Class B (Rated up to 130°C) | | **Dielectric Strength** | 1,500 VAC for 1 minute | | **Operating Temp** | -10°C to +70°C | | **Certifications** | CE, UL, RoHS compliant | --- ### 4. Comparison to Standard DC Fans Unlike DC fans (which use PWM controllers and Hall Effect sensors), the **W2AC-A42C-R** is a "dumb" component: 1. **No Speed Control:** It runs at a fixed speed based on the AC frequency (50/60Hz). 2. **Robustness:** It is significantly more resistant to voltage spikes than sensitive DC electronics. 3. **Direct Plug:** It does not require a power supply unit (PSU) or transformer, plugging directly into mains power.