POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS 300 V • 600 V Specifications Voltage Ratings Ampere Ratings Leakage Current Withstand Rating Flammability Rating Approvals Environmental Description Recommended Fuses 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. 300 V JLLN 600 V JLLS Web Resources Features/Benefits • • • • • 300 VAC/600 VAC 0 – 600 A <0.6 mA at 600 V 200 kA RMS SYM UL94 V-0 UL Listed (File: E14721) CSA Certified (File: LR7316) RoHS Compliant, Lead (Pb) Free Sample requests, downloadable CAD drawings and other technical information: littelfuse.com/lft littelfuse.com/fuseblocks 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 1 2 3 30 LFT30030 1 2 3 C — — 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 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 — — — — — — TORQUE WIRE RANGE WIRE TYPE DIN RAIL MOUNT WIRE RANGE Solid/Stranded TORQUE TERMINAL SUFFIX BOX PRESSURE SCREW LUG PLATE BASE ORDERING NUMBER BASE TEMP RATING ORDERING NUMBER POLES CU-AL AMP RATING Ordering Information (Class T 300 V) 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 ORDERING NUMBER BASE TEMP RATING ORDERING NUMBER POLES CU-AL AMP RATING Ordering Information (Class T 600 V) COVER ORDERING NUMBER* 125˚C • LFT60030FBC 125˚C • LFT60060FBC 130˚C — LT60100FBC 130˚C 130˚C 130˚C — — — LT60200FBC LT60400FBC LT60600FBC * Covers sold individually. One cover needed for each pole. † Wire Type for Pressure Plate and Screw Terminal is CU only littelfuse.com/lft 1 of 5 © 2016 Littelfuse POWR-GARD® Products Rev: 4-A-012516 POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 300 V 30 A 21.8 [.86] 15.0 [.59] 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] Ø4.5 [.18] TYP. 71.1 [2.80] 3.7 [.15] 300 V 60 A 46.9 [1.85] 24.6 [.97] 16.4 [.65] 30.5 [1.20] 8.2 [.32] 41.9 [1.65] 69.1 [2.72] 52.7 [2.07] 36.8 [1.45] Ø4.5 [.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] littelfuse.com/lft 42.8 [1.69] 47.6 [1.88] Ø.2 THRU Ø.4 .5 15.9 [.63] Ø.2 THRU Ø.4 .5 Ø.2 THRU Ø.5 .4 R3.2 [.13] TYP. 2 of 5 © 2016 Littelfuse POWR-GARD® Products Rev: 4-A-012516 POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 38.1 [1.50] 19.1 [.75] 300 V 200 A Ø.3 THRU Ø.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] 28.6 [1.13] 12.7 [.50] 300 V 400 A 171.5 [6.75] 127.0 [5.00] 57.2 [2.25] 9.5 [.38] 103.1 [4.06] 60.6 [2.38] 85.7 [3.38] Ø.3 THRU Ø.5 .5 15.9 [.63] Ø.3 THRU Ø.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] Ø.3 THRU Ø.5 .5 15.9 [.63] 54.0 [2.13] 111.1 [4.38] Ø.3 THRU Ø.8 .5 213.5 [8.41] 222.3 [8.75] littelfuse.com/lft 3 of 5 © 2016 Littelfuse POWR-GARD® Products Rev: 4-A-012516 POWR-GARD® Blocks and Holders Datasheet 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] Ø.2 THRU 7.9 [.31] Ø.4 .5 42.8 [1.69] 104.6 [4.12] 47.6 [1.88] 15.9 [.63] 77.0 [3.03] Ø.3 THRU Ø.5 .4 R3.2 [.13] TYP. 153.9 [6.06] littelfuse.com/lft 4 of 5 © 2016 Littelfuse POWR-GARD® Products Rev: 4-A-012516 POWR-GARD® Blocks and Holders Datasheet LF SERIES CLASS T FUSE BLOCKS Dimensions mm (inches) 38.1 [1.50] 600 V 200 A 114.3 [4.50] 19.1 [.75] 19.1 [.75] 57.2 [2.25] 15.9 [.63] Ø.3 THRU 9.5 [.38] Ø.5 .5 9.5 [.38] 98.4 [3.88] Ø.3 THRU Ø.6 .5 196.9 [7.75] 57.2 [2.25] 600 V 400 A 44.5 [1.75] 171.5 [6.75] 28.6 [1.13] 127.0 [5.00] 12.7 [.50] Ø.3 THRU Ø.5 .5 9.5 [.38] 60.3 [2.38] 85.7 [3.38] 15.9 [.63] 114.3 [4.50] Ø.3 THRU Ø.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] Ø.3 THRU Ø.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] Ø.3 THRU Ø.8 .5 247.7 [9.75] littelfuse.com/lft 5 of 5 © 2016 Littelfuse POWR-GARD® Products Rev: 4-A-012516