3-phase + neutral line fi lters FN 3256 Compact three-phase and neutral line fi lter for industrial machinery/equipment ■ Compact, space-saving design, optimized Approvals for industrial machinery ■ Combines high attenuation performance with low leakage current ■ Performance according to the machine tool standard EN 50370-1 ■ Increases also the immunity if operated directly on the mains input Technical specifications Typical electrical schematic Maximum continuous operating voltage: 3x 520/300VAC (480VAC +10% possible) Operating frequency: dc to 60Hz Rated currents: 8 to 160A @ 50°C High potential test voltage: P –> E 3000VDC for 2 sec P –> P 2250VDC for 2 sec Protection category: IP20 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 94V-2 or better Design corresponding to: UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939 MTBF @ 50°C/400V (Mil-HB-217F): >410,000 hours Typical applications Features and benefits ■ An extremely compact and light weight fil- ■ As a mains input filter for three phases and Mainly industrial equipment, machinery, ter design with a „cubic“ shape, requiring neutral line, FN 3256 ensures the compli- machine tools and diverse process auto- minimum mounting space and thus taking ance with the new product family standard mation systems with three-phase and neutral the constructional conditions on the mains for machine tools in mainly industrial electricity supply. Further, these filters are input of machinery into account. environments EN 50370-1. Further, its use suitable for power supplies, high-power ■ Simple and time-saving installation with will also increase the conducted immunity office equipment and further applications, good accessibility for automatic and hand of the entire installation significantly. where efficient interference suppression on ■ FN 3256 provides the attenuation perform- tools. three phases and the neutral line is required ■ Solid, touch-safe terminal blocks offering ance to meet the requirements of various and where space is critical. Because of the sufficient contacting cross section accord- machine tools with up to 8 driving axes very low leakage current, FN 3256 can even ing to the EN 60204-1 installation standard, with ~10m of motor cable each. be used for some medical devices. ■ For easy selection and application, the which is very common in industrial applications. filter current ratings are aligned with common fuse values. > Components > FN 3256 Filter selection table Filter Rated current Leakage current* Power loss Input/Output Weight @ 50°C (40°C) @ 480VAC/50Hz @ 25°C/50Hz connections [A] [mA] [W] [kg] FN 3256H-8-29 8 (8.8) <1 2.7 -29 0.6 FN 3256H-16-29 16 (17.5) <1 5.0 -29 0.7 FN 3256H-25-33 25 (27) <1 9.8 -33 1.1 FN 3256H-36-33 36 (39) <1 11.3 -33 1.2 FN 3256H-64-34 64 (70) <1 17.2 -34 2.3 FN 3256H-80-35 80 (88) <1 14.5 -35 3.5 FN 3256H-120-35 120 (131) <1 25.0 -35 4.7 FN 3256H-160-40 160 (175) <1 26.9 -40 5.7 * 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 = 50Ω/50Ω sym; B = 50Ω/50Ω asym; C = 0.1Ω/100Ω sym; D = 100Ω/0.1Ω sym 8 to 36A types 64 and 80A types 120A types 160A types > Components > FN 3256 Mechanical data Dimensions 8A 16A 25A 36A 64A 80A 120A 160A A 110 110 130 130 140 170 210 200 B 110 110 118 118 143 163 170 190 C 70 70 85 85 115 125 125 130 D 82 82 90 90 115 135 140 160 E 70 70 90 90 100 120 160 150 F 94.5 94.5 102.5 102.5 127.5 147.5 153.5 173.5 G 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 H 1 1 1 1 1.5 1.5 1.5 1.5 I 11.4 11.4 25 25 39 45 45 49.5 J M6 M6 M6 M6 M10 M10 M10 M10 K 12 12 12 12 18 18 17.5 16.5 L 33 33 40 40 40 35 44 55 All dimensions in mm; 1 inch = 25.4mm Tolerances according: ISO 2768 / EN 22768 Filter input/output connector cross sections -29 -33 -34 -35 -40 Solid wire 6mm² 16mm² 35mm² 50mm² 95mm² Flex wire 4mm² 10mm² 25mm² 50mm² 95mm² AWG type wire AWG 10 AWG 6 AWG 2 AWG 1/0 AWG 4/0 Recommended torque 0.6 - 0.8Nm 1.5 - 1.8Nm 4.0 - 4.5Nm 7 - 8Nm 17 - 20Nm Please visit www.schaffner.com to find more details on filter connectors. Your local partner: To find your local partner within Schaffner’s global network, please go to www.schaffner.com October 2006