The FN3359HV-400-99 from Schaffner is a EMI / EMC Filter with Voltage Rating 300 to 760 V, Current Rating 400 to 438 A, Leakage Current 7.5 mA, Temperature operating range -25 to 100 Degree C. Tags: Chassis Mount. More details for FN3359HV-400-99 can be seen below.