LFT606001

LFT300301 LITTELFUSE | Alldatasheet

Document overview

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Technical content

300 V • 600 V

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: Base Thermoplastic Fuse Clip Tin plated copper alloy Box Lug Aluminum 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 Recommended Fuses

300 V JLLN

600 V JLLS

Sample requests, downloadable CAD drawings and other technical information: Littelfuse.com/lft Littelfuse.com/fuseblocks

Description

The Littelfuse Class T fuse blocks offer many advantages such as space saving design, mounting flexibility for easier installation, snap-to-release DIN rail mounts and available covers. Features/Benefits Space-saving design Accommodates a wide range of existing mounting configurations One hand release from DIN rail for 30–60 A fuses Reinforced fuse clips are standard Covers available for most amperages to enhance safety Both hex and slot set screw options available on 60 A box lugs AMPERE RATING POLE ORDERING NUMBER TORQUE WIRE RANGE WIRE TYPE BASE TEMP RATING DIN RAIL MOUNT COVER ORDERING NUMBER* BASE ORDERING NUMBER TERMINAL SUFFIX BOX LUG HEX BOX LUG SLOT PRES SURE PLATE SCREW

1 LFT300301

— C — —

5.6 N-m (50 in-lbs) 2–4 AWG

125 ˚C • LFT30030FBC2 LFT300302 2.8 N-m (25 in-lbs) 6–14 AWG3 LFT300303

1 LFT300601

C-HX C — — 125 ˚C • LFT30060FBC2 LFT300602 2.8 N-m (25 in-lbs) 6–14 AWG3 LFT300603 100

1 LFT301001

CS — — —

13.6 N-m (120 in-lbs) 2/0–6 AWG

130 ˚C — LFT30100FBC4.5 N-m (40 in-lbs) 8 AWG 3 LFT301003 4.0 N-m (35 in-lbs) 10–14 AWG 200 1 LFT302001 CS — — — 31.1 N-m (275 in-lbs) 250 kcmil-6 130 ˚C — —3 LFT302003 400 1 LFT304001 CS — — — (2) 31.1 N-m (275 in-lbs) 250 kcmil-6 130 ˚C — —3 LFT304003 600 1 LFT306001 CS — — — (2) 42.4 N-m (375 in-lbs) 500 kcmil-6 130 ˚C — —3 LFT306003 Ordering Information (Class T 300 V) POWR-GARD® Blocks & Holders LF SERIES CLASS T FUSE BLOCKS Littelfuse.com/lft © 2022 Littelfuse, Inc. Rev: 020122 1 of 6

Ordering Information (Class T 600 V) AMPERE RATING POLES ORDERING NUMBER TORQUE WIRE RANGE WIRE TYPE BASE TEMP RATING DIN RAIL MOUNT COVER ORDERING NUMBER* BASE ORDERING NUMBER TERMINAL SUFFIX BOX LUG HEX BOX LUG SLOT PRES SURE PLATE SCREW

1 LFT600301

— C P S

5.6 N-m (50 in-lbs) 2–4 AWG † see

125 ˚C • LFT60030FBC2 LFT600302

2.8 N-m (25 in-lbs) 6–14 AWG3 LFT600303

1 LFT600601

C-HX C — — 125 ˚C • LFT60060FBC2 LFT600602 2.8 N-m (25 in-lbs) 6–14 AWG3 LFT600603 100

1 LFT601001

CS — — — 130 ˚C — LT60100FBC4.5 N-m (40 in-lbs) 8 AWG 3 LFT601003 4.0 N-m (35 in-lbs) 10–14 AWG 200 1 LFT602001 CS — — — 31.1 N-m (275 in-lbs) 250 kcmil-6 130 ˚C — LT60200FBC3 LFT602003 400 1 LFT604001 CS — — — (2) 31.1 N-m (275 in-lbs) 250 kcmil-6 130 ˚C — LT60400FBC3 LFT604003 600 1 LFT606001 CS — — — (2) 42.4 N-m (375 in-lbs) 500 kcmil-6 130 ˚C — LT60600FBC3 LFT606003 * Covers sold individually. One cover needed for each pole. † Wire type for pressure plate and screw terminal is CU only POWR-GARD® Blocks & Holders LF SERIES CLASS T FUSE BLOCKS Littelfuse.com/lft © 2022 Littelfuse, Inc. Rev: 020122 2 of 6

Dimensions mm (inches) 21.8 [.86] 71.1 [2.80] 3.7 [.15] TYP. 35.6 [1.40] 6.9 [.27] Ø4.5 [.18]

300 V 30 A

73.7 [2.90] 4.5 [.18] 24.6 [.97] 36.8 [1.45] 8.2 [.32] 16.4 [.65] 46.9 [1.85] 30.5 [1.20] 69.1 [2.72] 52.7 [2.07] 41.9 [1.65] Ø4.5 [.18] TYP. 34.8 [1.37] 133.4 [5.25] 7.9 [.31] 17.4 [.69] 66.7 [2.63] 104.6 [4.12] R3.2 [.13] TYP. 47.6 [1.88] 7.9 [.31]9.5 [.38] 26.9 [1.06] 26.0 [1.03] 42.8 [1.69] Ø.2 THRU Ø.4 .5 Ø.2 THRU Ø.4 .5 Ø.2 THRU Ø.5 .4

300 V 60 A

300 V 100 A

POWR-GARD® Blocks & Holders LF SERIES CLASS T FUSE BLOCKS Littelfuse.com/lft © 2022 Littelfuse, Inc. Rev: 020122 3 of 6

38.1 [1.50] 177.8 [7.00] 19.1 [.75] 9.5 [.38] 114.3 [4.50] R3.6 [.14] TYP. 15.9 [.63] 57.2 [2.25] 168.3 [6.63] 88.9 [3.50] 9.5 [.38] 22.2 [.88] 92.1 [3.63] Ø.3 THRU Ø.5 .5 206.2 [8.12] 57.2 [2.25] 9.5 [.38] 28.6 [1.13] 171.5 [6.75] 15.9 [.63] 60.6 [2.38] 12.7 [.50] 103.1 [4.06] 85.7 [3.38] 127.0 [5.00] Ø.3 THRU Ø.5 .5 Ø.3 THRU Ø.6 .5 Dimensions mm (inches) 222.3 [8.75] 69.9 [2.75] 8.8 [.35] 9.5 [.38] 209.6 [8.25] 60.3 [2.38] 15.9 [.63] 74.4 [2.93] 213.5 [8.41] 60.3 [2.38] 54.0 [2.13] 79.4 [3.13] 111.1 [4.38] Ø.3 THRU Ø.8 .5 Ø.3 THRU Ø.5 .5 POWR-GARD® Blocks & Holders LF SERIES CLASS T FUSE BLOCKS

300 V 200 A

300 V 400 A

300 V 600 A

Littelfuse.com/lft © 2022 Littelfuse, Inc. Rev: 020122 4 of 6

Dimensions mm (inches) 39.9 [1.57] 72.3 [2.85] 3.7 [.15] 9.5 [.38] 36.2 [1.42] 76.1 [3.00] 45.7 [1.80] 112.3 [4.42] 81.9 [3.23] 54.0 [2.13] 89.7 [3.53] 7.6 [.30] 24.6 [.97] 17.0 [.67] R2.9 [.11] TYP. 46.9 [1.85] 29.8 [1.17] 44.8 [1.77] 52.0 [2.05] 34.8 [1.37] 153.9 [6.06] 9.5 [.38] 17.5 [.69] 77.0 [3.03] 104.6 [4.12] 47.6 [1.88] 42.8 [1.69] 77.0 [3.03] R3.2 [.13] TYP. Ø.3 THRU Ø.5 .4 Ø.2 THRU Ø.4 .5 POWR-GARD® Blocks & Holders LF SERIES CLASS T FUSE BLOCKS

600 V 30 A

600 V 60 A

600 V 100 A

Littelfuse.com/lft © 2022 Littelfuse, Inc. Rev: 020122 5 of 6

Dimensions mm (inches) 38.1 [1.50] 196.9 [7.75] 9.5 [.38] 19.1 [.75] 114.3 [4.50] 9.5 [.38] 98.4 [3.88] 15.9 [.63] 57.2 [2.25] 19.1 [.75] Ø.3 THRU Ø.6 .5 Ø.3 THRU Ø.5 .5 57.2 [2.25] 228.6 [9.00] 9.5 [.38] 28.6 [1.13] 12.7 [.50] 114.3 [4.50] 171.5 [6.75] 15.9 [.63] 60.3 [2.38] 85.7 [3.38] 127.0 [5.00] 44.5 [1.75] Ø.3 THRU Ø.5 .5 Ø.3 THRU Ø.6 .5 69.9 [2.75] 247.7 [9.75] 209.6 [8.25] 60.3 [2.38] 123.8 [4.88] 15.9 [.63] 74.4 [2.93] 54.0 [2.13] 79.4 [3.13] 130.2 [5.13] 60.3 [2.38] 149.2 [5.88] Ø.3 THRU Ø.8 .5 Ø.3 THRU Ø.5 .5 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 POWR-GARD® Blocks & Holders LF SERIES CLASS T FUSE BLOCKS

600 V 200 A

600 V 400 A

600 V 600 A

Littelfuse.com/lft © 2022 Littelfuse, Inc. Rev: 020122 6 of 6