Delta Electronics HPAM EC Fans and Blowers are electrically commutated and combine high airflows, great efficiency, and low noise to meet various applications. The EC motor can achieve over 90% efficiency by optimizing magnet parts and motor winding and features accurate motor temperature control and a motor structure design that includes the latest bearing system structure technology. EC axial fans feature pulse width modulation (PWM) for speed control and are available in 1- or 3-phase variants, making them universally applicable without modifications. The EC blowers have metal or plastic impellers depending on the models, include an inlet cone/nozzle, and are CE/TUV/UL certified. Delta Electronics HPAM EC Fans and Blowers are suitable for rack cooling, room air conditioning, air handling units, and condensers.