The **W2AC-A14C-R2** is a specific model identifier typically associated with **Delta Electronics** high-performance industrial cooling fans, specifically within their **W2** series. These are AC axial fans designed for longevity and high thermal efficiency in server racks, power supplies, and industrial enclosures. --- ### 1. Component Specification Table | Feature | Specification Details | | :--- | :--- | | **Part Number** | W2AC-A14C-R2 | | **Frame Size** | 120mm x 120mm x 38mm (Standard Industrial Size) | | **Voltage Type** | AC (Alternating Current) | | **Operating Voltage** | 115V or 230V (Depending on specific regional winding) | | **Bearing Type** | Dual Ball Bearing (Long life, high reliability) | | **Blade Material** | Plastic (UL 94V-0 Rated Flame Retardant) | | **Termination** | Lead Wires or Terminals (Standard configuration) | --- ### 2. Key Electronic Features #### A. Motor Design The "W2" series utilizes a **shaded-pole motor** or a **permanent split capacitor motor** (depending on the torque requirements). These motors are brushless and designed to operate directly from the AC mains without the need for an external DC power supply. #### B. The "R2" Suffix Significance In Delta’s nomenclature, the "R2" often indicates a specific revision or environmental protection rating: * **RoHS Compliance:** Guaranteed lead-free construction. * **Safety Features:** Often includes impedance protection or thermal protection to prevent the motor from burning out if the blades are physically obstructed (Locked Rotor Protection). #### C. Bearing System The dual ball bearing system is the electronic-mechanical heart of the unit. Unlike sleeve bearings, ball bearings allow the fan to be mounted in any orientation (horizontal, vertical, or angled) without affecting the lifespan, which is typically rated for **>50,000 hours** at 40°C. --- ### 3. Application Areas * **Networking Equipment:** Cooling for switches and routers. * **Industrial Controls:** Heat dissipation in CNC machines or PLC cabinets. * **Power Supplies:** Large-scale UPS systems. --- ### 4. Technical Wiring Diagram (Typical) ```mermaid graph LR A[AC Power L] --- B(Thermal Protector) B --- C{Motor Windings} D[AC Power N] --- C C --- E[Ground/Frame] ```