Cooling Fan 4wire DC48V 12.0A The AVC DBTB2070B8S is a high-performance, large-airflow DC cooling fan specifically designed for industrial and power applications, such as VFDs (Variable Frequency Drives) and IPS/UPS (Uninterruptible Power Supply) systems, which require substantial cooling. Technical Specification: Model AVC DBTB2070B8S Type DC Axial Cooling Fan Size 200 x 200 x 70 mm (20cm fan diameter) Rated Voltage DC 48V Rated Current 12.0A Bearing Type Double Ball Bearing Power Connection 4-Wire Connector The presence of a 4-wire connector indicates that the fan supports Pulse Width Modulation (PWM) speed control and Tachometer (Sense) output. This allows the VFD or UPS system to precisely manage the fan’s speed based on the internal temperature, which helps reduce noise and save energy when maximum cooling is not required, while also monitoring the fan’s status.
