Delta Electronics Industrial Fans offer IP ratings up to IP68, increased airflow ratings, and enhanced operating life. These fans feature an impeller and frame design that maximizes performance and operational reliability while reducing inefficiencies. A long operating life is achieved with these fans by utilizing a metal frame, redesigned motor, and PWBA to enhance efficiency and reduce current, strategically placed air vents, and ceramic bearings to ward against electric erosion. Delta Electronics Industrial Fans are designed for use in Industry 4.0, Artificial Intelligence of Things (AIoT), energy, and harsh environments, including applications such as factory automation, solar inverter systems, motor drivers, and battery storage/backup systems.