The FN3256H-25-33-R69 from Schaffner is a EMI / EMC Filter with Voltage Rating 300 to 520 V, Current Rating 25 to 27 A, Leakage Current 0.6 mA, Temperature operating range -25 to 100 Degree C. Tags: Chassis Mount. More details for FN3256H-25-33-R69 can be seen below.