The FN 3100-50-34 from Schaffner is a EMI / EMC Filter with Voltage Rating 300 to 520 V, Current Rating 50 to 54.8 A, Leakage Current 9.3 mA, Temperature operating range -25 to 100 Degree C. Tags: Chassis Mount. More details for FN 3100-50-34 can be seen below.