The **W2AC-A22D-R/Q** is a specific model identifier typically associated with high-performance **AC Axial Fans**, often manufactured by companies like **Wistro** (commonly used for cooling industrial motors and frequency converters). Below is a detailed breakdown of its electronic and mechanical specifications. --- ### 1. Technical Specifications Table | Feature | Specification Details | | :--- | :--- | | **Input Voltage** | 230V AC (Single Phase) | | **Frequency** | 50 / 60 Hz | | **Current Consumption** | Approx. 0.12A - 0.25A (Varies by load) | | **Power Input** | ~30W to 45W | | **Speed (RPM)** | 2700 - 3100 RPM | | **Airflow Direction** | Intake over struts (standard for R/Q series) | | **Bearing Type** | Dual Ball Bearing (Long life) | | **Insulation Class** | Class F or H (High temperature resistance) | --- ### 2. Component Analysis #### A. The Motor Structure (External Rotor) The "W2AC" series usually utilizes an **External Rotor Motor**. Unlike standard motors where the shaft spins inside a stationary shell, here the "shell" (the magnets/windings) spins around the stationary internal stator. * **Benefit:** Provides a more compact design and better cooling for the motor itself. #### B. The Capacitor (Run Capacitor) This is an AC induction motor. To start and maintain the phase shift required for rotation, it requires a **Permanent Split Capacitor (PSC)**. * The capacitor is often integrated into the housing or wired externally. * It ensures high efficiency and smooth operation. #### C. Thermal Protection Most units in the "R/Q" variant include an **Internal Thermal Overload Protector**. * If the fan stalls or the ambient temperature exceeds safety limits, the circuit opens to prevent the copper windings from melting. --- ### 3. Part Number Suffix Decoding While nomenclature can vary slightly by manufacturer, the "R/Q" suffix usually indicates specific mechanical or electrical interfaces: * **R/Q Suffix:** Often refers to the **Square (Q)** or **Round (R)** housing frame style or the specific **Plug/Connector** type used for the power leads. * **Terminal Type:** These models usually feature flat-pin terminals (2.8 x 0.5 mm) or lead wires for direct integration into industrial control cabinets. --- ### 4. Typical Applications * **Forced Ventilation:** Cooling of heavy-duty electric motors. * **Control Cabinets:** Heat dissipation in server racks or CNC machines. * **Frequency Converters:** Preventing overheating in power electronics. ---