Two Stage ac/dc EMI Filters FN2090 are very high performing single-phase filters made by Schaffner they offer outstanding attenuation performance in a compact design, and chassis mounting makes them versatile solutions for a range of applications. With a rated voltage of 250 Vac, 50/60Hz and 250 Vdc, and an operating frequency from DC to 400 Hz. Available in rated currents from 1 to 30A, the two-stage line filter design ensures very high levels of both differential and common-mode attenuation. The Schaffner FN2090 range also includes the FN2090B type meeting medical equipment standards (IEC 60601-1) as well as overvoltage protection (Z type). Suitable for electrical and electronic equipment, consumer goods, household appliances, building automation, industrial machinery, medical devices, electronic data processing systems, office automation, and various noisy environments requiring high filter performance