POWR-GARD® Blocks and Holders Datasheet LF Series Class H/K5 and r Fuse blocks 250 V • 600 V Specifications Voltage Rating 250 V, 600 V Ampere Ratings 0-600 A Leakage Current <0.6 mA at 600 V Withstand RatingClass H: 10 kA RMS SYM Class R: 200 kA RMS SYM Flammability Rating UL94 V-0 Approvals UL Listed (File: E14721) CSA Certified (File: LR7316) Environmental RoHS Compliant, Lead (Pb) Free Description Web Resources The Littelfuse Class H/K5 and R blocks offer many benefits such as indication, snap-to-release DIN rail mounting and universal mounting holes. Class H and Class R fuse blocks are dimensionally the same, but Class R blocks incorporate a rejection feature, which only allows Class R fuses to be inserted. Sample requests, downloadable CAD drawings and other technical information: L ittelfuse.com/lfh Littelfuse.com/lfr Littelfuse.com/fuseblocks Features/Benefits Class H/K5 Blocks – 250 V Recommended Fuses NLN, RLN • • • • Universal mounting holes for easy replacement Indication offered on most 250 V and 600 V versions One hand release from DIN rail for ferrule style fuses Reinforced fuse clips are standard on all Class H and Class R fuse blocks • Covers available for 100 A and lower to enhance safety Class R Blocks – 250 V FLNR/FLNR_ID, KLNR, LLNRK Class H/K5 Blocks – 600 V NLS, RLS Class R Blocks – 600 V FLSR/FLSR_ID, KLSR, LLSRK/LLSRK_ID, IDSR 60 100 200 400 600 Base part number Suffix Pressure Screw Plate P S P S P S — — — — — — 1 2 3 1 2 3 LFH250301 LFH250302 LFH250303 LFH250601 LFH250602 LFH250603 Box Lug C C C CID CID CID 1 LFH251001 CID — — 3 LFH251003 CID — — 1 3 1 3 1 3 LFH252001 LFH252003 LFH254001 LFH254003 LFH256001 LFH256003 C C C C C C — — — — — — — — — — — — Torque Wire Range 2.8 N-m (25 in-lbs) C P S 6-14 AWG 10-14 AWG 10-22 AWG Base Temp Rating DIN Rail Indication 30 ordering number TERMINAL Amp Rating Poles Ordering Information (Class H 250 V) COVer ordering number* CU Only 125˚C • — LFH25030FBC CU-AL 125˚C • • LFH25060FBC 130˚C — • LFH25100FBC Wire Type 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 2-4 AWG 6-14 AWG 13.6 N-m (120 in-lbs) 2/0-6 AWG 4.5 N-m (40 in-lbs) 8 AWG 4.0 N-m (35 in-lbs) 10-14 AWG 31.1 N-m (275 in-lbs) 250 kcmil-6 CU-AL 130˚C — — — 31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL 130˚C — — — 42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL 130˚C — — — CU-AL Solid/ Stranded Note: Reinforcing springs standard on all Class H fuse blocks. *Covers sold individually. One cover needed for each pole. Littelfuse.com 1 of 6 © 2013 Littelfuse POWR-GARD® Products Rev: 011513 POWR-GARD® Blocks and Holders Datasheet LF Series Class H/K5 And R Fuse blocks 60 100 200 400 600 1 LFH601001 CID — — 3 LFH601003 CID — — 1 3 1 3 1 3 LFH602001 LFH602003 LFH604001 LFH604003 LFH606001 LFH606003 C C C C C C — — — — — — — — — — — — 2.8 N-m (25 in-lbs) C P S Wire Range Wire Type 6-14 AWG 10-14 AWG CU Only 10-22 AWG 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 2-4 AWG 6-14AWG 13.6 N-m (120 in-lbs) 2/0-6AWG 4.5 N-m (40 in-lbs) 8 AWG CU-AL CU-AL Solid/ Stranded Base Snap Temp to Rating release Indication 1 2 3 1 2 3 Torque COVer ordering number* 130˚C • • LFH60030FBC 130˚C • • LFH60060FBC 130˚C — • LFH60100FBC 4.0 N-m (35 in-lbs) 10-14 AWG 31.1 N-m (275 in-lbs) 250 kcmil-6 CU-AL 130˚C — — — 31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL 130˚C — — — 42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL 130˚C — — — Indication 30 ordering number Suffix Box Pressure Screw Lug Plate CID PID SID CID PID SID CID PID SID CID — — CID — — CID — — BASE ordering number LFH600301 LFH600302 LFH600303 LFH600601 LFH600602 LFH600603 Terminal Amp Rating Poles Ordering Information (Class H 600 V) COVer ordering number* Note: Reinforcing springs standard on all Class H fuse blocks. 60 100 200 400 600 1 3 LFR251003 CID — — 1 3 1 3 1 3 LFR252001 LFR252003 LFR254001 LFR254003 LFR256001 LFR256003 C C C C C C — — — — — — — — — — — — 1 2 3 1 2 3 BASE ordering number LFR250301 LFR250302 LFR250303 LFR250601 LFR250602 LFR250603 Torque 2.8 N-m (25 in-lbs) C P S Wire Range Wire Type 6-14 AWG 10-14 AWG CU Only 10-22 AWG 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 2-4 AWG 6-14 AWG 13.6 N-m (120 in-lbs) 2/0-6 AWG 4.5 N-m (40 in-lbs) 8 AWG CU-AL CU-AL Solid/ Stranded Base Snap Temp to Rating release 125˚C • — LFH25030FBC 125˚C • • LFH25060FBC 130˚C — • LFH25100FBC 4.0 N-m (35 in-lbs) 10-14 AWG 31.1 N-m (275 in-lbs) 250 kcmil-6 CU-AL 130˚C — — — 31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL 130˚C — — — 42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL 130˚C — — — Indication 30 ordering number Suffix Box Pressure Screw Lug Plate C P S C P S C P S CID — — CID — — CID — — CID LFR251001 — — Poles Amp Rating TERMINAL Ordering Information (Class R 250 V) COVer ordering number* Note: Reinforcing springs standard on all Class R fuse blocks. 30 60 100 200 400 600 1 2 3 1 2 3 1 3 1 3 1 3 1 3 ordering number Suffix Box Pressure Screw Lug Plate CID PID SID CID PID SID CID PID SID CID — — CID — — CID — — — — LFR601001 CID — — LFR601003 CID — — LFR602001 C — — LFR602003 C — — LFR604001 C — — LFR604003 C — — LFR606001 C — — LFR606003 C — — BASE ordering number LFR600301 LFR600302 LFR600303 LFR600601 LFR600602 LFR600603 Torque TERMINAL Amp Rating Poles Ordering Information (Class R 600 V) 2.8 N-m (25 in-lbs) C P S Wire Range Wire Type 6-14 AWG 10-14 AWG CU Only 10-22 AWG 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 2-4 AWG 6-14 AWG 13.6 N-m (120 in-lbs) 2/0-6 AWG 4.5 N-m (40 in-lbs) 8 AWG CU-AL CU-AL Solid/ Stranded Base Snap Temp to Rating release 130˚C • • LFH60030FBC 130˚C • • LFH60060FBC 130˚C — • LFH60100FBC 4.0 N-m (35 in-lbs) 10-14 AWG 31.1 N-m (275 in-lbs) 250 kcmil-6 CU-AL 130˚C — — — 31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL 130˚C — — — 42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL 130˚C — — — Note: Reinforcing springs standard on all Class R fuse blocks. *Covers sold individually. One cover needed for each pole. Littelfuse.com 2 of 6 © 2013 Littelfuse POWR-GARD® Products Rev: 011513 POWR-GARD® Blocks and Holders Datasheet Class H/K5 AND R Fuse blocks Dimensions mm (inches) 15.6 [.61] 13.0 [.51] 4.8 [.19] 76.5 [3.01] 74.7 [2.94] 28.6 [1.13] 250 V 30 A 48.5 [1.91] 32.2 [1.27] 23.8 [.94] 16.3 [.64] 6.8 [.27] 42.9 [1.69] 31.8 [1.25] 40.1 [1.58] 15.9 [.63] 8.4 [.33] 5.6 [.22] 31.9 38.2 [1.26] [1.51] 44.6 [1.76] R2.8 [.11] TYP R2.8 [.11] TYP .2 THRU 3.6 [.14] 250 V 60 A 37.3 [1.47] 22.4 [.88] 14.8 [.58] 9.7 [.38] 57.4 [2.26] 104.1 [4.10] 70.7 [2.78] 24.9 [.98] 89.2 [3.51] 55.8 [2.20] 76.5 [3.01] 43.1 [1.70] 43.9 [1.73] 75.7 [2.98] 119.7 [4.71] R2.8 [.11] TYP 5.5 [.21] 126.3 [4.97] 250 V 100 A 100.6 [3.96] 46.0 [1.81] 91.6 [3.61] 34.7 [1.37] 20.3 [.80] 11.3 [.45] 53.6 [2.11] 72.6 [2.86] 60.5 [2.38] 51.5 [2.03] 66.0 [2.60] 22.9 [.90] R3.4 [.13] TYP 133.0 [5.23] 177.8 [7.00] Littelfuse.com 3 of 6 © 2013 Littelfuse POWR-GARD® Products Rev: 011513 POWR-GARD® Blocks and Holders Datasheet Class H/K5 AND R Fuse blocks Dimensions mm (inches) 250 V 200 A 63.5 [2.50] 12.7 [.50] 76.2 [3.00] 228.6 [9.00] 215.9 [8.50] 184.2 [7.25] 165.1 [6.50] 63.5 [2.50] 19.1 [.75] 12.7 [.50] 52.6 [2.07] 72.4 [2.85] 15.9 [.63] R4.3 [.17] TYP. 128.5 [5.06] 181.1 [7.13] Ø.3 THRU Ø.3 THRU Ø.8 .4 250 V 400 A 66.7 [2.63] 22.2 [.88] 15.9 [.63] 88.9 [3.50] 84.4 [3.32] 250.8 [9.88] 15.9 [.63] 15.9 [.63] 95.3 [3.75] 108.0 [4.25] 266.7 [10.50] 95.3 [3.75] Ø.3 THRU Ø.8 .4 Ø.3 THRU Ø.8 .4 196.9 [7.75] 184.2 [7.25] 292.1 [11.50] 317.5 [12.5] 114.3 [4.5] 79.4 [3.1] 34.9 [1.4] 19.1 [.8] 250 V 600 A 19.1 [.8] 114.3 [4.5] 139.7 [5.5] 110.6 [4.4] 298.5 [11.8] 15.9 [.6] 114.3 [4.5] Ø.3 THRU Ø.6 .4 Ø.3 THRU Ø.6 .4 Ø.3 THRU Ø.8 .4 241.3 [9.5] 215.9 [8.5] 355.6 [14.0] Littelfuse.com 4 of 6 © 2013 Littelfuse POWR-GARD® Products Rev: 011513 POWR-GARD® Blocks and Holders Datasheet Class H/K5 AND R Fuse blocks Dimensions mm (inches) 38.4 [1.51] 21.5 [.85] 19.2 [.76] 16.8 [.66] 6.4 [.25] 600 V 30 A 73.1 [2.88] 51.6 [2.03] 41.1 [1.62] 52.5 [2.07] 107.9 [4.25] 86.4 [3.40] 75.9 [2.99] 20.7 [.82] 47.6 [1.87] R3.4 [.13] TYP R2.6 [.10] TYP 56.0 [2.20] 118.6 [4.67] 127.1 [5.00] 166.7 [6.56] 600 V 60 A 43.8 [1.73] 83.6 [3.29] 32.4 [1.28] 29.8 [1.17] 19.9 [.78] 11.4 [.45] 69.5 [2.74] 59.6 [2.35] 123.2 [4.85] 109.3 [4.30] 59.7 [2.35] 99.4 [3.91] 22.9 [.90] 55.2 74.2 [2.18] [2.92] R3.4 [.13] TYP .2 THRU .5 .5 134.6 [5.30] 184.2 [7.25] 600 V 100 A 33.8 [1.33] 19.6 [.77] 15.0 [.59] 145.3 [5.72] 125.7 [4.95] 107.0 [4.21] 79.8 [3.14] 61.0 [2.40] 53.4 [2.10] 66.0 [2.60] 22.9 [.90] 64.6 [2.54] R3.4 [.13] TYP 172.8 [6.80] 228.6 [9.00] Littelfuse.com 5 of 6 © 2013 Littelfuse POWR-GARD® Products Rev: 011513 POWR-GARD® Blocks and Holders Datasheet Class H/K5 AND R Fuse blocks Dimensions mm (inches) 600 V 200 A 63.5 [2.50] 44.5 [1.75] 31.8 [1.25] 12.7 [.50] 76.2 [3.00] 63.5 [2.50] 12.7 [.50] 52.3 [2.06] Ø.3 THRU Ø.7 .4 84.2 [3.32] Ø.3 THRU Ø.8 .4 160.1 [6.31] 228.6 [9.00] 196.9 [7.75] 165.1 [6.50] 72.4 [2.85] 15.9 [.63] 52.3 [2.06] 76.7 [3.02] 84.1 [3.31] Ø.3 THRU Ø.3 THRU Ø.8 .4 160.3 [6.31] 192.0 [7.56] 244.3 [9.62] R4.3 [.17] TYP. 600 V 400 A 88.9 [3.50] 73.0 [2.88] 66.7 [2.63] 22.2 [.88] 15.9 [.63] 95.3 [3.75] 146.1 [5.75] 266.7 [10.50] 15.9 [.63] 250.8 [9.88] 84.4 [3.32] 15.9 [.63] Ø.3 THRU Ø.8 .4 222.3 [8.75] 273.1 [10.75] 368.3 [14.50] 600 V 600 A 114.3 [4.50] 95.3 [3.75] 79.4 [3.13] 34.9 [1.38] 19.1 [.75] 114.3 [4.50] 177.8 [7.00] 254.0 [10.00] 19.1 [.75] 317.5 [12.50] 298.5 [11.75] 110.6 [4.36] 15.9 [.63] Ø.3 THRU Ø.6 .4 Ø.3 THRU Ø.8 .4 431.8 [17.00] Littelfuse.com 6 of 6 © 2013 Littelfuse POWR-GARD® Products Rev: 011513