Brushless, permanent magnet motors are combined with EMP designed motor control electronics to provide a high efficiency, long life fan. Brushless motors have no contacting parts to wear and reduce life. Features include locked rotor protection, over temperature protection, over current protection, over voltage protection and reverse battery protection.

EMP fans feature die cast aluminum castings for strength, durability and improved heat transfer from the motor and electronics. This allows EMP fans to provide continuous, high output airflow performance in extreme temperature conditions. The fan blades and optional finger guard are made of high temperature, glass filled polymers to perform in harshest environments.

Optional finger guard protection available that conforms to SAE J1308 requirements while minimizing airflow losses.

EMP Fans are validated to withstand all field conditions including thermal cycles, salt spray, pressure wash, thermal shock, vibration and shock, electrical transients, ESD, reverse battery and more. Durability testing has surpassed 25,000 hours of continuous operation at high speed and high temperature.

EMP has been producing brushless fans since 2006. Fans have achieved in excess of 50,000 hours of life in primary engine cooling applications where the electric fans are the only source of airflow for the engine. These fans are being reused on their 2nd or 3rd engine in many cases.

EMP fans are fully reversible for debris removal and heat exchanger clean out. The fans can be reversed using the PWM input or they can be configured to reverse automatically at ignition on or at a timed interval. Fan reversal has been field proven in severe environments like forestry and stationary power generation to reduce or even eliminate the need for manual heat exchanger cleaning.

EMP fans can be run at any speed between the programmed minimum and maximum speed to minimize power consumption and noise. Variable speed also allows for accurate control of airflow and temperature optimization in cooling systems.

EMP fans can be controlled manually using EMPower Connect™ Service Tool. The software in the fans can be changed or upgraded in the field using this tool. History data can be downloaded and includes hours of operation, temperature data, voltage data, calibration information and diagnostic fault codes.

EMP fans are sealed and fully submersible for long life operation when exposed to the elements. Fans are validated to withstand submersion and direct pressure wash. EMP fans can be submerged while running without damaging the fan. The fan will simply stop rotating and continue operation once removed from the water.

EMP offers a full line of CSA and UL approved fans for applications requiring certification. The non sparking brushless design can be used in environments where gases may be present.