The FN3270H-20-44 from Schaffner is a EMI / EMC Filter with Voltage Rating 300 to 520 V, Current Rating 20 to 22 A, Leakage Current 3.1 mA, Temperature operating range -25 to 100 Degree C. Tags: Chassis Mount. More details for FN3270H-20-44 can be seen below.