The **MA28TBA-R** is a specialized high-performance cooling fan manufactured by **Mechatronics**. It is part of their AC axial fan series, designed for industrial applications requiring high airflow and reliability. --- ### 1. Technical Specifications The following table summarizes the core electronic and mechanical specifications for the MA28TBA-R: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 115 VAC (50/60 Hz) | | **Current Rating** | 0.53 / 0.45 Amps | | **Power Consumption** | 42.0 Watts | | **Rated Speed** | 2,800 / 3,250 RPM | | **Max Airflow** | 320 / 370 CFM (Cubic Feet per Minute) | | **Static Pressure** | 0.75 / 0.83 in H2O | | **Noise Level** | 56 / 60 dB(A) | | **Bearing Type** | Dual Ball Bearing | --- ### 2. Key Electronic Features * **Motor Design:** It utilizes a **Shaded Pole** or **Permanent Split Capacitor** induction motor (depending on the specific revision), optimized for continuous operation. * **Protection Mechanism:** These fans typically feature **Thermal Protection**. If the motor exceeds safe operating temperatures due to a rotor lock or blocked vents, an internal thermal cutout prevents the windings from burning out. * **Termination:** The "R" suffix often denotes the lead wire configuration or a specific rotation/mounting orientation. It typically uses standard UL-recognized lead wires for electrical connection. * **Construction:** * **Frame:** Die-cast aluminum (acts as a heat sink for the motor). * **Impeller:** UL94V-0 reinforced plastic or metal, balanced to reduce electronic noise and vibration. --- ### 3. Part Number Breakdown (Mechatronics Naming Convention) | Prefix/Code | Meaning | | :--- | :--- | | **MA** | Mechatronics AC Series | | **28** | Frame Size (approx. 280mm or related to specific series diameter) | | **T** | Terminal or Thickness indicator | | **BA** | Ball Bearing System | | **R** | Specific revision or RoHs compliance indicator | --- ### 4. Applications Due to its high CFM (Airflow) and AC power input, the MA28TBA-R is commonly found in: * **Server Racks:** Large-scale cooling for data centers. * **Industrial Control Panels:** Heat dissipation for high-voltage electronics. * **Power Supplies:** Cooling for large UPS systems or inverters. * **HVAC Systems:** Used in specialized air handling units.