POWR-GARD® Fuse Datasheet CLASS RK5 – FLNR_ID • FLSR_ID SERIES INDICATOR ® FUSES QPL 250/600 Vac • Dual Element • Time Delay • 1/10 -600 A Ordering Information / 1/8* 15/100 2/10 1/4 3/10† 4/10 1/2 1 10 / 8/10 1 1 1/8 1 1/4 1 4/10 1 1/2 1 6/10 6 10 1 8/10 2 2 1/4 2 1/2 2 8/10 3 3 2/10 3 1/2 AMPERE RATINGS 4 8 4 1/2 9 5 10 5 6/10 12 6 15 6 1/4 17 1/2 7 20 7 1/2 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 *FLNR only. †FLNR, FLSR, FLSR_ID only. **FLNR, FLSR, FLSR_ID only Note: For 1/10 – 30A 250 volt fuses, order non-indicating FLNR series fuses. TYPE Description Available in both Indicating and Non-Indicating versions, the FLNR/FLSR series of fuses set the standard for general purpose fuses. The dual-element design provides advanced short circuit and overload protection. FLSR series fuses provide excellent protection for all types of circuits especially those containing motors. Applications • Service entrance switches NON-INDICATING INDICATING NON-INDICATING INDICATING VOLT 600 600 250 250 AMP CATALOG NUMBER FLSR 15 FLSR015 FLSR_ID 15 FLSR015ID FLNR 60 FLNR060 FLNR_ID 60 FLNR060ID SERIES ORDERING NUMBER FLSR015.T FLSR015.TXID FLNR060.T FLNR060.TXID Web Resources Download TC Curves, CAD drawings and other technical information: littelfuse.com/flsr littelfuse.com/flnr Recommended Fuse Holders • Transformers LFR60 Series • LFR25 Series • Switchboard mains and feeders • Motor control central mains and motor branch circuits Peak Let-Thru Curve (600 V) • All general purpose circuits FLSR_ID Features/Benefits • Indication • Dual-element design • Available without indication • Current limiting Specifications Voltage Ratings Interrupting Ratings Ampere Range Approvals AC: 250 V (FLNR_ID); 600 V (FLSR_ID) DC: 125 V (FLNR 1/10 – 30 A); 125 V (FLNR_ID 35 – 600 A); 300 V (FLSR_ID) AC: 2 00 kA rms symmetrical 300 kA rms symmetrical (Littelfuse self-certified) DC: 20 kA 1/10 – 600 A Standard 248-12, Class RK5 UL Listed (File: E81895) CSA Certified (File: LR29862) Federal Specification WF-1814 (QPL- W-F-1814) Dimensions Note: For more information, see Peak Let-Thru Table Please refer to the Class R dimensions page 2. littelfuse.com 1 of 2 © 2016 Littelfuse POWR-GARD® Products Rev: 021916 POWR-GARD® Fuse Datasheet CLASS RK5 – FLNR_ID • FLSR_ID SERIES INDICATOR ® FUSES Current-Limiting Effects of FLSR and FLSR_ID (600 V) Fuses SHORT-CIRCUIT CURRENT* APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS 60 A 100 A 200 A 400 A 2,100 3,200 5,000 5,000 2,850 4,300 7,250 10,000 3,400 5,000 8,500 13,500 3,800 5,500 9,500 15,750 4,100 5,700 10,250 17,000 4,500 6,400 10,750 18,000 4,800 6,700 11,500 19,000 5,000 7,250 12,000 19,500 5,250 7,750 13,000 21,000 5,750 8,100 14,000 22,000 6,250 9,000 15,000 24,000 6,750 9,750 16,500 26,000 7,600 11,100 19,000 28,000 8,400 12,250 21,500 30,000 30 A 1,250 1,600 1,800 2,250 2,450 2,700 2,900 3,000 3,400 3,600 3,900 4,300 4,500 4,600 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 600 A 5,000 10,000 15,000 19,000 21,000 23,000 24,250 27,000 29,000 30,500 33,000 35,000 38,000 40,000 Current-Limiting Effects of FLNR and FLNR_ID (250V) Fuses SHORT-CIRCUIT CURRENT* APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS 60 A 100 A 200 A 400 A 2,100 3,100 5,000 5,000 2,500 3,900 6,500 9,500 3,150 4,400 7,250 10,500 3,400 5,000 8,250 12,000 3,750 5,250 9,000 12,500 4,100 5,600 9,500 13,500 4,300 5,800 9,750 14,000 4,400 6,250 10,250 15,000 5,000 6,500 10,500 16,000 5,250 7,000 11,500 17,000 5,750 7,500 12,500 19,000 6,000 8,000 13,500 21,000 7,000 9,000 15,200 24,000 7,500 9,750 16,500 26,000 30 A 1,400 1,550 2,000 2,250 2,400 2,550 2,650 2,800 3,000 3,200 3,400 3,850 4,100 4,300 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 600 A 5,000 10,000 14,000 16,000 16,500 18,000 19,000 20,000 21,000 23,000 25,500 27,500 31,500 34,000 *Prospective RMS Symmetrical Amperes Short-Circuit Current Note: Data Derived from Peak Let-Thru Curves Dimensions F G A A J B D E FIGURE NUMBER / –30 1 10 35 – 60 70 – 100 110 – 200 225 – 400 450 – 600 littelfuse.com 1 1 2 2 2 2 SERIES F B H D K C FIG. 1 AMPS E C 70-600A FIG. 2 DIMENSIONS INCHES (mm) A FLNR 2 (50.8) FLSR 5 (127.0) FLNR 3 (76.2) FLSR 51⁄ 2 (139.7) FLNR 57⁄ 8 (149.2) FLSR 77⁄ 8 (200.0) FLNR 71 ⁄ 8 (181.0) FLSR 9 5 ⁄ 8 (244.5) FLNR 8 5 ⁄ 8 (219.1) FLSR 115 ⁄ 8 (295.3) FLNR 10 3 ⁄ 8 (263.5) FLSR 13 3 ⁄ 8 (339.7) B ⁄2 (12.7) 3 ⁄4 (19.1) 3 ⁄4 (19.1) C ⁄2 (12.7) 5 ⁄8 (15.9) 5 ⁄8 (15.9) 5 1 (25.4) ⁄8 (15.9) 1 (25.4) 11 ⁄ 16 (27.0) 11 ⁄ 4 (31.8) 11 ⁄ 16 (27.0) 11⁄ 2 (38.1) 115 ⁄ 32 (37.3) 13 ⁄ 4 (44.5) 115 ⁄ 32 (37.3) 2 (50.8) 115 ⁄ 16 (49.2) 2 (50.8) 2 1⁄ 2 (63.5) 2 1⁄ 2 (63.5) 2 3 ⁄ 8 (60.3) 3 (76.2) 213 ⁄ 32 (61.1) 1 1 D ⁄16 (14.3) 13 ⁄16 (20.6) 13 ⁄16 (20.6) 11 ⁄ 16 (27.0) 11 ⁄ 16 (27.0) 15 ⁄ 16 (33.3) 119 ⁄ 32 (40.5) 127⁄ 32 (46.8) 2 3 ⁄ 32 (53.2) 219 ⁄ 32 (65.9) 219 ⁄ 32 (65.9) 3 3 ⁄ 32 (78.6) 9 2 of 2 E ⁄64 (2.0) 3 ⁄32 (2.4) 3 ⁄32 (2.4) 3 ⁄32 (2.4) 1 ⁄8 (3.2) 1 ⁄8 (3.2) 3 ⁄16 (4.8) 3 ⁄16 (4.8) 1 ⁄4 (6.4) 1 ⁄4 (6.4) 1 ⁄4 (6.4) 1 ⁄4 (6.4) 5 F ⁄32 (4.0) 3 ⁄16 (4.8) 3 ⁄16 (4.8) 1 ⁄4 (6.4) 3 ⁄4 (19.1) 3 ⁄4 (19.1) 11⁄ 8 (28.6) 11⁄ 8 (28.6) 15 ⁄ 8 (41.3) 15 ⁄ 8 (41.3) 5 H J K — — — 5 ⁄8 (15.9) ⁄8 (15.9) 7 ⁄8 (22.2) — — 5 — — — — — — — — ⁄4 (6.4) 1 ⁄4 (6.4) 7 ⁄16 (11.1) 7 ⁄16 (11.1) 5 ⁄8 (15.9) 5 ⁄8 (15.9) 3 ⁄4 (19.1) 3 ⁄4 (19.1) ⁄32 (7.1) 9 ⁄32 (7.1) 9 ⁄32 (7.1) 9 ⁄32 (7.1) 13 ⁄32 (10.3) 13 ⁄32 (10.3) 17 ⁄32 (13.5) 17 ⁄32 (13.5) ⁄2 (12.7) 1 ⁄2 (12.7) 11 ⁄16 (17.5) 11 ⁄16 (17.5) 15 ⁄16 (23.8) 15 ⁄16 (23.8) 11⁄ 8 (28.6) 11⁄ 8 (28.6) 3 G ⁄8 (9.5) — — — — — 2 (50.8) — 2 (50.8) — 1 9 1 © 2016 Littelfuse POWR-GARD® Products Rev: 021916