391, 392, 393 Series

9 Blade CW unit spanning 20” (508mm) to 32” (812mm). Engineered for maximum efficiency and durability, the ACS 390 Series configs stand out as the premier choice across a range of applications. Its sturdy build and high-quality materials guarantee consistent performance, even in challenging conditions. Whether facing extreme temperatures or overcoming airflow barriers or complex enclosures, this fan is a persistent/ reliable and rugged workhorse.