The FN 3026 HL-50-72 from Schaffner is a EMI / EMC Filter with Voltage Rating 300 to 520 V, Current Rating 50 to 53.5 A, Leakage Current 0.1 mA, Temperature operating range -25 to 100 Degree C. Tags: Chassis Mount. More details for FN 3026 HL-50-72 can be seen below.