POWR-GARD(R) Blocks & Holders LF SERIES CLASS T FUSE BLOCKS 300 V * 600 V Specifications Voltage Ratings 300 V/600 V Ampere Ratings 0-600 A Leakage Current <0.6 mA at 600 V Withstand Rating 200 kA RMS SYM Materials: BaseThermoplastic Fuse Clip Tin plated copper alloy Box LugAluminum Fuse Studs Zinc plated steel Pressure Plate Zinc plated steel Screw Zinc plated steel Flammability Rating UL 94 V-0 Approvals UL Listed (File: E14721) CSA Certified (File: LR7316) Environmental RoHS Compliant, Lead (Pb) Free Description The Littelfuse Class T fuse blocks offer many advantages such as space saving design, universal mounting holes, snap-to-release DIN rail mounts and available covers. Recommended Fuses Features/Benefits Web Resources Sample requests, downloadable CAD drawings and other technical information: Littelfuse.com/lft Littelfuse.com/fuseblocks AMPERE RATING Ordering Information (Class T 300 V) ORDERING NUMBER POLES TORQUE WIRE RANGE 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 13.6 N-m (120 in-lbs) 4.5 N-m (40 in-lbs) 4.0 N-m (35 in-lbs) 31.1 N-m (275 in-lbs) (2) 31.1 N-m (275 in-lbs) (2) 42.4 N-m (375 in-lbs) 2-4 AWG 6-14 AWG 2-4 AWG 6-14 AWG 2/0-6 AWG 8 AWG 10-14 AWG 250 kcmil-6 250 kcmil-6 500 kcmil-6 TORQUE WIRE RANGE TERMINAL SUFFIX BOX PRESSURE SCREW LUG PLATE BASE ORDERING NUMBER 1 2 3 30 LFT30030 1 2 3 C -- -- 60 LFT30060 1 2 3 C -- -- 100 LFT30100 1 -- 3 CS -- -- 200 400 600 LFT30200 LFT30400 LFT30600 1 1 1 -- -- -- 3 3 3 CS CS CS -- -- -- -- -- -- WIRE TYPE DIN RAIL MOUNT BASE TEMP RATING Solid/Stranded 300 V JLLN 600 V JLLS Space-saving design Universal mounting holes for easy replacement One hand release from DIN rail for 30-60 A fuses Reinforced fuse clips are standard Covers available for most amperages to enhance safety CU-AL COVER ORDERING NUMBER* 125 C * LFT30030FBC 125 C * LFT30060FBC 130 C -- LFT30100FBC 130 C 130 C 130 C -- -- -- -- -- -- 2 3 30 LFT60030 1 2 3 C P S 60 LFT60060 1 2 3 C -- -- 100 LFT60100 1 -- 3 CS -- -- 200 400 600 LFT60200 LFT60400 LFT60600 1 1 1 -- -- -- 3 3 3 CS CS CS -- -- -- -- -- -- 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 13.6 N-m (120 in-lbs) 4.5 N-m (40 in-lbs) 4.0 N-m (35 in-lbs) 31.1 N-m (275 in-lbs) (2) 31.1 N-m (275 in-lbs) (2) 42.4 N-m (375 in-lbs) 2-4 AWG see 6-14 AWG note 2-4 AWG 6-14 AWG 2/0-6 AWG 8 AWG 10-14 AWG 250 kcmil-6 250 kcmil-6 500 kcmil-6 DIN RAIL MOUNT 1 WIRE TYPE Solid/Stranded TERMINAL SUFFIX BOX PRESSURE SCREW LUG PLATE BASE TEMP RATING ORDERING NUMBER POLES BASE ORDERING NUMBER CU-AL AMP RATING Ordering Information (Class T 600 V) COVER ORDERING NUMBER* 125C * LFT60030FBC 125C * LFT60060FBC 130C -- LT60100FBC 130C 130C 130C -- -- -- LT60200FBC LT60400FBC LT60600FBC * Covers sold individually. One cover needed for each pole. Wire type for pressure plate and screw terminal is CU only 1 of 5 Littelfuse.com/lft (c) 2019 Littelfuse, Inc. Rev: 091819 POWR-GARD(R) Blocks & Holders LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 300 V 30 A 15.0 [.59] 21.8 [.86] 59.9 [2.36] 40.9 [1.61] 6.9 [.27] 35.6 [1.40] 44.9 [1.77] 25.9 [1.02] 35.6 [1.40] O4.5 [.18] TYP. 71.1 [2.80] 3.7 [.15] 300 V 60 A 46.9 [1.85] 24.6 [.97] 16.4 [.65] 8.2 [.32] 41.9 [1.65] 69.1 [2.72] 30.5 [1.20] 52.7 [2.07] 36.8 [1.45] O4.5 [.18] TYP. 73.7 [2.90] 4.5 [.18] 300 V 100 A 34.8 [1.37] 104.6 [4.12] 26.9 [1.06] 17.4 [.69] 26.0 [1.03] 17.4 [.69] 7.9 [.31] 7.9 [.31] 9.5 [.38] 66.7 [2.63] 133.4 [5.25] 42.8 [1.69] 47.6 [1.88] O.2 THRU O.4 .5 15.9 [.63] O.2 THRU O.4 .5 O.2 THRU O.5 .4 R3.2 [.13] TYP. 2 of 5 Littelfuse.com/lft (c) 2019 Littelfuse, Inc. Rev: 091819 POWR-GARD(R) Blocks & Holders LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 300 V 200 A 38.1 [1.50] 19.1 [.75] O.3 THRU O.5 .5 9.5 [.38] 114.3 [4.50] 92.1 [3.63] 22.2 [.88] 9.5 [.38] 57.2 [2.25] 15.9 [.63] 88.9 [3.50] R3.6 [.14] TYP. 168.3 [6.63] 177.8 [7.00] 300 V 400 A 28.6 [1.13] 171.5 [6.75] 127.0 [5.00] 57.2 [2.25] 12.7 [.50] 9.5 [.38] 103.1 [4.06] 60.6 [2.38] 85.7 [3.38] O.3 THRU O.5 .5 15.9 [.63] O.3 THRU O.6 .5 206.2 [8.12] 300 V 600 A 209.6 [8.25] 9.5 [.38] 8.8 [.35] 79.4 [3.13] 69.9 [2.75] 60.3 [2.38] 74.4 [2.93] 60.3 [2.38] O.3 THRU O.5 .5 15.9 [.63] 54.0 [2.13] 111.1 [4.38] O.3 THRU O.8 .5 213.5 [8.41] 222.3 [8.75] 3 of 5 Littelfuse.com/lft (c) 2019 Littelfuse, Inc. Rev: 091819 POWR-GARD(R) Blocks & Holders LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 600 V 30 A 24.6 [.97] 17.0 [.67] 46.9 [1.85] 69.1 [2.72] 29.8 [1.17] 7.6 [.30] 41.9 [1.65] 52.0 [2.05] 44.8 [1.77] R2.9 [.11] TYP. 89.7 [3.53] 600 V 60 A 39.9 [1.57] 9.5 [.38] 54.0 [2.13] 112.3 [4.42] 76.1 [3.00] 81.9 [3.23] 45.7 [1.80] 36.2 [1.42] 72.3 [2.85] 3.7 [.15] 600 V 100 A 34.8 [1.37] 17.5 [.69] 7.9 [.31] 9.5 [.38] 77.0 [3.03] 26.0 [1.03] O.2 THRU 7.9 [.31] O.4 .5 42.8 [1.69] 104.6 [4.12] 47.6 [1.88] 15.9 [.63] 77.0 [3.03] O.3 THRU O.5 .4 R3.2 [.13] TYP. 153.9 [6.06] 4 of 5 Littelfuse.com/lft (c) 2019 Littelfuse, Inc. Rev: 091819 POWR-GARD(R) Blocks & Holders LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 600 V 200 A 38.1 [1.50] 19.1 [.75] 19.1 [.75] 114.3 [4.50] 57.2 [2.25] 15.9 [.63] O.3 THRU 9.5 [.38] O.5 .5 9.5 [.38] 98.4 [3.88] O.3 THRU O.6 .5 196.9 [7.75] 600 V 400 A 57.2 [2.25] 44.5 [1.75] 171.5 [6.75] 28.6 [1.13] 127.0 [5.00] 12.7 [.50] O.3 THRU O.5 .5 9.5 [.38] 60.3 [2.38] 85.7 [3.38] 15.9 [.63] 114.3 [4.50] O.3 THRU O.6 .5 228.6 [9.00] 600 V 600 A 209.6 [8.25] 149.2 [5.88] 69.9 [2.75] 130.2 [5.13] 60.3 [2.38] 9.5 [.38] 9.5 [.38] O.3 THRU O.5 .5 79.4 [3.13] 60.3 [2.38] 54.0 [2.13] 74.4 [2.93] 15.9 [.63] 123.8 [4.88] O.3 THRU O.8 .5 247.7 [9.75] Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer. 5 of 5 Littelfuse.com/lft (c) 2019 Littelfuse, Inc. Rev: 091819