This EMC input filter enables your drive to be in compliance with electromagnetic compatibility requirements.It is designed to reduce conducted emissions on the supply mains and enlarge the maximum motor cable length.This product is compliant with IEC/EN 61800-3, category C1, C2 or C3, in Environment 1 (public network).It is compatible with Altivar 32 and Altivar machine ATV320.It is mounted underneath the variable speed drive.It acts as a support for the drives and is attached to them via tapped holes.