FLNR_ID/FLSR_ID IndicatorTM Class RK5 Fuses 250/600 VAC ■ Dual-Element, Time Delay ■ 1/10 – 600 Amperes SPECIFICATIONS Voltage ratings: AC: 250 Volts (FLNR_ID); 600 Volts (FLSR_ID) DC: 125 Volts (FLNR 1/10-30A); 125 Volts (FLNR_ID 35-600A); GENERAL 300 Volts (FLSR_ID) PURPOSE Interrupting ratings: AC: 200,000 amperes rms symmetrical FUSES 300,000 amperes rms symmetrical (Littelfuse self-certified)l DC: 20,000 amperes Ampere range: 1/10 – 600 amperes Approvals: AC: UL Listed Class RK5 fuses per UL 248 (formerly UL 198E) (File No. E81895) CSA Certified HRCI-R per C22.2 #106 (File No. LR29862) DC: FLNR: UL Listed 125 Volts per UL 198L (File No. E81895) FLNR_ID: UL Listed 125 Volts per UL 198L (File No. E81895) FLSR_ID: UL Listed 300 Volts per UL 198L (File No. E81895) MSHA 300 Volt listing 1996 Federal Specification No. WF1814 (QPL) AMPERE RATINGS 6 ⁄10 ** ⁄10 8 ⁄8 ⁄10 15 ⁄100 1 2 ⁄10 11⁄8 1 ⁄4 11⁄4 3 ⁄10 14⁄10 4 ⁄10 11⁄2 1 ⁄2 16⁄10 **FLNR only 1 Littelfuse FLNR_ID/FLSR_ID IndicatorTM fuses provide visual blown fuse indication at a glance. The patented state-of-theart solid state design provides maximum reliability and superior performance characteristics in a true dual-element design. The use of IndicatorTM fuses reduces down-time, nuisance opening, increases safety, and can save thousands of dollars in lost production time. APPLICATIONS Service entrance switches Switchboard main and feeder switches Motor control center mains and motor branch circuits Individual fused combination motor controllers Distribution panelboards Industrial control panels Protection of fully-rated panelboards and loadcenters All general purpose circuits FEATURES/BENEFITS ■ ■ ■ Reduce Down-Time — A glance at the indicating window of a FLNR_ID or FLSR_ID IndicatorTM fuse pinpoints open fuses immediately. If the window is dark, the fuse has opened. It’s that simple. No fuse testing required. Machine operators can immediately determine that there is an open fuse and request maintenance personnel to bring the proper replacement. Reduce Nuisance Opening — FLNR_ID and FLSR_ID IndicatorTM fuses have superior time-delay and cycling characteristics which can lengthen fuse life and decrease needless opening. Reduce Fuse Inventory — Because FLNR_ID and FLSR_ID IndicatorTM fuses have superior performance characteristics they can be used on a variety of applications, thus decreasing fuse inventory. 1 18⁄10 2 21⁄4 21⁄2 28⁄10 3 32⁄10 31⁄2 4 41⁄2 5 56⁄10 6 61⁄4 7 71⁄2 8 9 10 12 15 171⁄2 20 25 30 35 40 45 50 60 70 75 80 90 100 110 125 150 175 200 225 250 300 350 400 450 500 600 NOTE: For 1/10 - 30 ampere 250 volt fuses, order nonindicating FLNR series fuses. NOTE: All FLSR_ID fuses rated 1 amp and above are Indicator fuses. Example part number (series & amperage): FLSR100ID RECOMMENDED FUSE BLOCKS LR250 series (for FLNR_ID series fuses) LR600 series (for FLSR_ID series fuses) Refer to Fuse Block section of this catalog for additional information. ■ ■ Reduce Equipment Damage — FLNR_ID and FLSR_ID IndicatorTM fuses have superior overload and short circuit protection which can reduce equipment damage. IndicatorTM fuses also provide IEC Type II protection to NEMA motor starters without the high cost of RK1 fuses. Reduce Accidents — The FLNR_ID and FLSR_ID IndicatorTM fuses improve safety by minimizing exposure to live circuits. Unlike other forms of blown fuse indication, IndicatorTM fuses provide built-in blown fuse indication with the power on or off. No second guessing whether a light means a good or bad fuse and no current going across a blown fuse to power a lighted accessory. 27 FLNR_ID/FLSR_ID IndicatorTM Class RK5 Fuses 250/600 VAC ■ Dual-Element, Time Delay ■ 1/10 – 600 Amperes A A F K G B D E REFER TO FIG. NO. 70-600A DIMENSIONS IN INCHES (mm in parentheses) SERIES A B C D E F G H J K FLNR_ID 2 (50.8) 1/2 (12.7) 1/2 (12.7) 9/16 (14.3) 5/64 (2.0) 5/32 (4.0) 3/8 (9.5) — — — FLSR_ID 5 (127.0) 3/4 (19.1) 5/8 (15.9) 13/16 (20.6) 3/32 (2.4) 3/16 (4.8) 5/8 (15.9) — — — FLNR_ID 3 (76.2) 3/4 (19.1) 5/8 (15.9) 13/16 (20.6) 3/32 (2.4) 3/16 (4.8) 5/8 (15.9) — — — FLSR_ID 5-1/2 (139.7) 1 (25.4) 5/8 (15.9) 1-1/16 (27.0) 3/32 (2.4) 1/4 (6.4) 7/8 (22.2) — — — FLNR_ID 5-7/8 (149.2) 1 (25.4) 1-1/16 (27.0) 1-1/16 (27.0) 1/8 (3.2) 3/4 (19.1) 1-1/4 (31.8) 1/4 (6.4) 9/32 (7.1) 1/2 (12.7) FLSR_ID 7-7/8 (200.0) 1-1/4 (31.8) 1-1/16 (27.0) 1-5/16 (33.3) 1/8 (3.2) 3/4 (19.1) 1-1/2 (38.1) 1/4 (6.4) 9/32 (7.1) 1/2 (12.7) FLNR_ID 7-1/8 (181.0) 1-1/2 (38.1) 1-15/32 (37.3) 1-19/32 (40.5) 3/16 (4.8) 1-1/8 (28.6) 1-27/32 (46.8) 7/16 (11.1) 9/32 (7.1) 11/16 (17.5) FLSR_ID 9-5/8 (244.5) 1-3/4 (44.5) 1-15/32 (37.3) 1-27/32 (46.8) 3/16 (4.8) 1-1/8 (28.6) 2-3/32 (53.2) 7/16 (11.1) 9/32 (7.1) 11/16 (17.5) FLNR_ID 8-5/8 (219.1) 2 (50.8) 1-15/16 (49.2) 2-3/32 (53.2) 1/4 (6.4) 1-5/8 (41.3) 2-11/32 (59.5) 5/8 (15.9) 13/32 (10.3) 15/16 (23.8) FLSR_ID 11-5/8 (295.3) 2-1/2 (63.5) 2 (50.8) 2-19/32 (65.9) 1/4 (6.4) 1-5/8 (41.3) 2-27/32 (72.2) 5/8 (15.9) 13/32 (10.3) 15/16 (23.8) FLNR_ID 10-3/8 (263.5) 2-1/2 (63.5) 2-3/8 (60.3) 2-19/32 (65.9) 1/4 (6.4) 2 (50.8) 2-27/32 (72.2) 3/4 (19.1) 17/32 (13.5) 1-1/8 (28.6) FLSR_ID 13-3/8 (339.7) 3 (76.2) 2-13/32 (61.1) 3-3/32 (78.6) 1/4 (6.4) 2 (50.8) 3-11/32 (84.93) 3/4 (19.1) 17/32 (13.5) 1-1/8 (28.6) 1 2 70 – 100 2 110 – 200 2 225 – 400 2 450 – 600 G FIG. 2 1 35 – 60 D J C FIG. 1 1/10 – 30 F B H GENERAL PURPOSE FUSES AMPERES E C 1000 800 600 400 300 200 1000 800 600 400 300 200 100 80 60 40 30 20 100 80 60 40 30 TIME IN SECONDS TIME IN SECONDS 20 10 8 6 4 3 2 10 8 6 4 3 2 .01 600 800 1000 300 400 200 60 80 100 30 40 20 6 8 10 2 3 4 .6 .8 1 .3 .4 .1 .2 CURRENT IN AMPERES CURRENT IN AMPERES 10000 8000 6000 4000 3000 2000 .01 1000 800 600 400 300 200 .02 .1 .08 .06 .04 .03 .02 100 80 60 40 30 20 .2 .1 .08 .06 10 8 6 4 3 2 .2 1 .4 .3 1 .8 .6 .4 .3 1 .8 .6 .04 .03 28 10A 15A 20A 25A 30A FLSR_ID 2/10A 1/4A 3/10A 4/10A 1/2A 6/10A 8/10A 1A 1 1/4A 1 4/10A 2A 2 1/2A 4 1/2A 5A 7A 7 1/2A 9A FLNR 1A 1.25A 1.6A 2A 2.5A 3A 4A 6A For additional application information request Product Bulletin EL-4 FLNR_ID/FLSR_ID IndicatorTM Class RK5 Fuses 250/600 VAC Dual-Element, Time Delay ■ ■ FLNR_ID 60A 100A FLSR_ID 400A 600A 200A 1/10 – 600 Amperes 600 600 400 400 300 300 200 200 100 80 100 80 60 60 40 40 30 30 20 20 TIME IN SECONDS 1000 800 TIME IN SECONDS 1000 800 10 8 6 4 3 2 1 .8 400A 600A GENERAL PURPOSE FUSES 4 3 2 1 .8 100000 80000 60000 40000 30000 20000 10000 8000 6000 4000 3000 2000 1000 800 600 400 300 200 100 80 60 40 30 20 10 8 6 5 1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000 20000 .01 10000 8000 .01 6000 .02 4000 .03 .02 3000 .03 2000 .06 .05 .04 1000 800 .04 600 .1 .08 .06 400 .1 .08 300 .2 200 .3 .2 100 80 .4 .3 60 50 .6 CURRENT IN AMPERES FLSR_ID 1000000 1000000 800000 800000 600000 600000 400000 400000 300000 300000 200000 200000 100000 100000 80000 600A 60000 400A 40000 200A 30000 100A 20000 60A 10000 8000 6000 4000 3000 2000 PEAK LET - THRU IN AMPERES PEAK LET - THRU IN AMPERES 200A 6 .4 FLNR_ID 100A 60A 10 8 .6 CURRENT IN AMPERES 30A 15A 400A 60000 50000 200A 40000 30000 100A 20000 60A 10000 30A 8000 6000 5000 15A 4000 3000 2000 200000 100000 80000 60000 40000 30000 20000 10000 8000 6000 4000 3000 2000 1000 800 600 300 400 200 100 200000 100000 80000 60000 40000 30000 20000 10000 8000 6000 4000 3000 100 2000 100 1000 200 800 300 200 600 400 300 300 600 400 400 800 600 200 1000 800 100 1000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES 600A 80000 AVAILABLE FAULT CURRENT SYMMETRICAL R. M. S. AMPERES 29