## Electronic Specifications: AFB0812VH-R00 The **AFB0812VH-R00** is a high-performance DC axial fan manufactured by Delta Electronics. It belongs to the **AFB series**, known for its reliability and high airflow-to-size ratio. --- ### 1. Key Technical Specifications Below are the primary electronic and mechanical characteristics of the unit: | Parameter | Specification | | :--- | :--- | | **Rated Voltage** | 12V DC | | **Operating Voltage Range** | 7.0 to 13.8V DC | | **Input Current** | 0.41A (Max 0.60A) | | **Input Power** | 4.92W | | **Speed** | 3600 RPM | | **Maximum Air Flow** | 52.02 CFM (1.473 m³/min) | | **Maximum Air Pressure** | 6.47 mmH₂O (0.255 IN H₂O) | | **Acoustic Noise** | 42.5 dB-A | | **Bearing Type** | Dual Ball Bearing | --- ### 2. Sensor and Wiring (R00 Suffix) The **"-R00"** suffix is critical for understanding the electronic output of this specific model. In Delta’s nomenclature, this indicates a **Lock Sensor (Alarm Signal)**. * **Function:** This sensor outputs a signal that indicates whether the fan motor is spinning or stalled. * **Signal Behavior:** * **Normal Operation:** The output stays at a "Low" voltage level. * **Fan Failure (Stall):** The output signal goes "High" (typically pulled up to the supply voltage). * **Wiring Configuration:** 1. **Red Wire:** Positive (+) Power (12V) 2. **Black Wire:** Negative (-) Ground (GND) 3. **Blue Wire:** R00 Sensor (Lock/Alarm Signal) --- ### 3. Electronic Protection Features The AFB0812VH-R00 includes several built-in electronic protections to ensure longevity and safety: * **Locked Rotor Protection:** The circuitry prevents damage to the motor coils if the fan blades are physically obstructed. It attempts to restart automatically once the obstruction is removed. * **Polarity Protection:** The fan is protected against reverse connection of the positive and negative leads (though prolonged reverse voltage should be avoided). * **Insulation Resistance:** Minimum of 10 Meg Ohm at 500V DC between the frame and the (+) terminal. * **Dielectric Strength:** Maximum 5mA at 500V AC for one minute between the frame and the (+) terminal. --- ### 4. Physical Dimensions * **Frame Size:** 80mm x 80mm * **Thickness:** 25.4mm * **Material:** Plastic (UL 94V-0) impeller and frame.