DATASHEET 3-Phase Filters FN 351 General Purpose EMC Filter EMC solution for industrial inverters and motor Approvals drives Rated currents from 8 to 280 A Selectable voltage level of 440 V and 520 V High differential and common-mode attenuation Approvals up to 110 A Features and benefits Performance indicators Broad range of power ratings for fast and convenient filter selection Available as 440 VAC (FN 351) and 520 VAC (FN 351 H) versions for network-specific applications FN 351 filters provide a broadband common and differential-mode attenuation performance, which remains available also when high interference levels are present Solid, touch-safe filter terminals contribute to overall equipment safety Introduced as one of the very first motor drive EMC filters in the market, FN 351 has been widely imitated and has success- fully proven its function Technical specifications over more than 10 years Maximum continuous operating voltage 3x 440/250 VAC (FN 351) 3x 520/300 VAC (FN 351 H) DC to 60 Hz Typical applications Operating frequency Rated currents 8 to 280 A 40C Three-phase motor drives High potential test voltage P > E 2600 VDC for 2 sec (FN 351) Inverters and converters P > P 1900 VDC for 2 sec (FN 351) P > E 2750 VDC for 2 sec (FN 351 H) Industrial automation equipment P > P 2250 VDC for 2 sec (FN 351 H) UPS Protection category IP 20 SMPS Overload capability 4x rated current at switch on, General purpose three-phase filtering 1.5x rated current for 1 minute, once per hour Temperature range (operation and storage) -25C to +85C (25/085/21) (FN 351) Temperature range (operation and storage) -25C to +100C (25/100/21) (FN 351 H) Typical electrical schematic Flammability corresponding to UL 94 V-2 or better UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939 Design corresponding to MTBF 40C/400 V (Mil-HB-217F) 135,000 hours2 EMC/EMI Products Schaffner Group Datasheets 10 Mar 2020 Filter selection table Filter* Rated current Typical drive Leakage current*** Power loss Weight Input/Output 40C (25C) power rating** 440/520 VAC/50 Hz 25C/50 Hz connections A kW mA W kg FN 351-8-29 8 (9.2) 3 0.3 7 -29 0.8 FN 351-16-29 16 (18.5) 5.5 0.3 8 -29 1.3 FN 351-25-33 25 (28.9) 11 3.2 8 -33 1.4 FN 351-36-33 36 (41.6) 15 3.2 9 -33 1.5 FN 351-50-.. 50 (57.7) 22 3.5 11 -33 1.6 FN 351-64-.. 64 (73.9) 30 3.5 15 -33 -34 1.7 FN 351-80-34 80 (92.3) 37 3.7 23 -34 5.6 FN 351-110-35 110 (127) 55 3.7 25 -35 5.8 FN 351-180-36 180 (208) 90 3.7 49 -36 13.0 FN 351-280-37 280 (323) 132 4.3 70 -37 28.0 FN 351 H-8-29 8 (9.2) 4 0.3 7 -29 1.1 FN 351 H-16-29 16 (18.5) 7.5 0.3 8 -29 1.3 FN 351 H-25-33 25 (28.9) 15 3.8 8 -33 1.4 FN 351 H-36-33 36 (41.6) 18.5 3.8 9 -33 1.5 FN 351 H-50-.. 50 (57.7) 30 3.8 11 -33 1.6 FN 351 H-64-33 64 (73.9) 37 3.8 15 -33 1.7 FN 351 H-80-34 80 (92.3) 45 4.4 23 -34 5.6 FN 351 H-110-35 110 (127) 75 4.4 25 -35 5.8 FN 351 H-180-36 180 (208) 110 4.4 49 -36 13.0 * To compile a complete part number, please replace the -.. with the required I/O connection style. ** Calculated at rated current, 400 VAC (FN 351)/480 VAC (FN 351 H) and cos phi=0.8. The exact value depends upon the efficiency of the drive, the motor and the entire application. *** Standardized calculated leakage current acc. IEC60939 under normal operating conditions (FN 351 at 440 VAC and FN 351H at 520 VAC). Typical filter attenuation Per CISPR 17 A=50 /50 sym B =50/50 asym C=0.1 /100 sym D=100 /0.1 sym 8 A types 16 A types 25 A types 36 and 50 A types 64 A types 80 and 110 A types 180 A types 280 A types