The FN2020 single-phase filters by Schaffner are essential components designed to reduce electromagnetic interference in both AC and DC power systems. These EMI filters are chassis-mounted and range from 1 to 30A rated currents with 250 Vac, 50/60 Hz and 250 Vdc that have an operating frequency of up to 400 Hz. They offer high attenuation of differential-mode noise. Schaffner FN2020 filters ensure reliable operation across various applications, including electrical and electronic equipment, consumer goods, household appliances, medical devices, office automation, and datacom equipment. See also the Schaffner two-stage filter versions (FN2060, FN2070 series) available for environments with higher noise levels.