DATASHEET 3-Phase + Neutral Line Filters FN 354 Compact Three-phase and Neutral Line Filter for High Frequency Attenuation Compact four-wire filter for applications with Approvals limited space High attenuation performance up to 300 MHz Equally suitable for star and delta power networks Features and benefits The FN 354 family of filters is intended primarily for applications that require extremely effective interference suppression across a broad frequency spectrum. Advanced two-stage filter circuits with highly saturating resistant toroidal inductors, in conjunction with feedthrough capacitors on each of the three phases and the neutral line, ensure that these filters provide very high attenuation in the upper frequency band. FN 354 are equally suitable for the operation on star and delta power networks. Typical applications Applications requiring high-frequency attenuation Technical specifications Power supplies Medical equipment Maximum continuous operating voltage 3x 440/250 VAC Office and data processing equipment Operating frequency dc to 60 Hz Rated currents 4 to 25 A 40 C Typical electrical schematic High potential test voltage P > E 2000 VAC for 2 sec P > P 1900 VDC for 2 sec Protection category IP20 (version with -47 connections) Overload capability 4x rated current at switch on, 1.5x rated current for 1 minute, once per hour Temperature range (operation and storage) -25 C to +100 C (25/100/21) Flammability corresponding to UL 94 V-2 or better Design corresponding to UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939 MTBF 40C/230V (Mil-HB-217F) 500,000 hours2 EMC/EMI Products Schaffner Group Datasheets 2014 Filter selection table Filter Rated current Leakage current* Power loss Input/Output Weight 40 C (25 C) Power loss 25 C/50 Hz connections A mA W kg FN 354-4-05 4 (4.5) 0.175 2.0 -05 0.23 FN 354-6-05 6 (6.7) 0.175 3.9 -05 0.38 FN 354-12-05 12 (13.4) 0.175 7.8 -05 1.1 FN 354-15-47 15 (16.8) 0.5 10.8 -47 4.7 FN 354-25-47 25 (28) 0.5 16.9 -47 4.7 * Maximum leakage under normal operating conditions, based on the assumption that all three phases and the neutral conductor are connected to the supply and the consumer. In this case, the current will mainly return through the neutral line, not as earth leakage. Typical filter attenuation Per CISPR 17 A = 50 /50 sym B = 50 /50 asym C = 0.1 /100 sym D = 100 /0.1 sym 4 and 6 A types 12 A types 15 A types 25 A types