EMI input filters are a combination of chokes and RF tested suppression capacity units, that have a smaller volume. The installation for user is much easier and more comfortable. The resulting transients are damped by the EMC filter effectively, regardless of location. The standards EN61800-3 (product standard) and EN55011/EN55022 (Limits and measurement methods) manage the application of the EMI filter. The line filter or input filter is suitable for drives with a capacity from 0.75 up to 630KW, with a main voltage of 400V.