POWR-GARD® Fuse Datasheet Class H – RLN / RLS series fuses & lkn / lks links 250/600 VAC • Renewable • 1-600 A Guide For Proper Renewable Fuse Usage Renewable fuses should only be used where shortcircuit currents are known to be less than 10,000 amperes, and where correct replacement of open links is assured. Renewable fuses and links are not recommended for new applications. Still Using Class H Fuses? Littelfuse offers several fuse and fuse block combinations that can greatly improve electrical safety. LLNRK / LLSRK FLNR / FLSR fuses LFR fuse holders Description Littelfuse RLN and RLS series renewable fuses have traditionally been used to provide low cost protection. However, generally increased levels of available fault current and the distinct possibility that renewable fuses may be improperly renewed, have rendered them unsafe. The use of these fuses in new applications is prohibited by law. Ordering Information 1 2 3 4 5 Specifications Voltage Ratings AC: 250 V (RLN); 600 V (RLS) Interrupting Ratings AC: 10 kA rms symmetrical Ampere Range 1–600 A ApprovalsStandard 248-6, Class H UL Listed (File: E81895) CSA Certified (File: LR29862) Fuse LinksTo order, specify LKN (250V) or LKS (600V) plus ampere rating. Ampere ratings 20 45 90 25 50 100 30 60 110 35 70 125 40 80 150 6 8* 10 12* 15 175 200 225† 250† 300† 350† 400† 450† 500† 600† *RLS only. †These ampere ratings require two links per fuse. Type Voltage Catalog Number Ordering Number fuse fuse link link 600 250 600 250 RLS020 rln020 lks025 lkn030 0RLS020.T 0rln020.T 0lks025.s 0lkn030.s Dimensions A A D C B Refer to Fig. No. 1 – 30 1 35 – 60 1 70 – 100 110 – 200 225 – 400 450 – 600 www.littelfuse.com 2 2 2 2 F B FIG. 1 Amperes E C G D FIG. 2 Dimensions Inches (mm) Series A B RLN 2 (50.8) 12 RLS 5 (127.0) 3 4 RLN 3 (76.2) RLS C D E F G ⁄ (12.7) 12 ⁄ (19.1) 5 8 3 4 ⁄ (19.1) 5 8 ⁄ (15.9) 13 16 (20.6) — — 5 ⁄ (139.7) 1 (25.4) 5 8 ⁄ (15.9) 11 ⁄16 (27.0) — — — RLN 5 7⁄8 (149.2) 1 (25.4) 1 (25.4) 11 ⁄16 (27.0) ⁄ (19.1) 15 ⁄16 (33.3) RLS 7 7⁄8 (200.0) 11 ⁄4 (31.8) 1 (25.4) 15 ⁄ 16 (33.3) 1 8 ⁄ (19.1) 19 ⁄16 (39.7) RLN 7 ⁄ (181.0) 1 ⁄ (38.1) 1 ⁄ (34.9) 1⁄ (39.7) 3 16 ⁄ (4.8) 1 ⁄ (28.6) 1 7⁄8 (47.6) RLS 9 ⁄ (244.5) 3 4 1 ⁄ (44.5) 1 ⁄ (34.9) 1 ⁄ (46.8) 3 16 ⁄ (4.8) 1 ⁄ (28.6) 23 ⁄32 (53.2) RLN 8 ⁄ (219.1) 2 (50.8) 1 ⁄ (47.6) 2⁄ (53.2) 14 ⁄ (6.4) 1 ⁄ (41.3) 213 ⁄32 (61.1) RLS 11 ⁄ (295.3) 2 ⁄ (63.5) 1 ⁄ (47.6) 2 ⁄ (65.9) 14 ⁄ (6.4) 5 8 1 ⁄ (41.3) 2 7⁄ 8 (73.0) RLN 10 ⁄ (263.5) 12 2 ⁄ (63.5) 2 ⁄ (57.2) 2 ⁄ (65.9) 14 ⁄ (6.4) 2 (50.8) 2 7⁄8 (73.0) RLS 13 ⁄ (339.7) 3 (76.2) 2 ⁄ (57.2) 3⁄ (78.6) 14 ⁄ (6.4) 2 (50.8) 37⁄16 (87.3) 12 1 8 5 8 5 8 5 8 3 8 3 8 12 ⁄ (12.7) 9 16 ⁄ (14.3) — — — ⁄ (15.9) 13 16 ⁄ (20.6) — — — ⁄ — 3 8 3 8 78 12 78 14 14 1 of 1 9 16 27 32 3 32 19 32 19 32 3 32 ⁄ (3.2) 3 4 ⁄ (3.2) 3 4 1 8 1 8 1 8 5 8 © 2012 Littelfuse POWR-GARD® Products Rev: 100112