General Purpose Fuses General Purpose Fuses FLNR/FLSR Class RK5 Fuses 250/600 VAC Dual-Element, Time-Delay 1/10 600 Amperes 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 Safety 200,000 A.I.R. Reliable interruption of all overcurrents up to 200,000 amperes. Faster acting short-circuit protection than any non-current-limiting mechanical protective device. Reliability Accurate and reliable Automated, precision manufactured and assembled parts ensure accurate, consistent response to overloads and short-circuits. Longer Equipment Life Reduced damage to equipment caused by heating and magnetic forces of short-circuits. Littelfuse FLNR/FLSR series fuses have been the superior UL Class Equipment runs cooler with low-resistance dual-element fuses. RK5 dual-element time-delay fuses, and are the most widely used class of fuses. FLNR/FLSR series fuses provide excellent protection for all types of circuits especially those containing motors. However, users and specifiers should consider the significant benefits offered by Indicator fuses. Complete information on these fuses may be found earlier in this section. Specifications Ampere Ratings 1 6 8 Voltage Ratings: AC: 250 Volts (FLNR) 10 10 1 10 4 8 30 80 225 1 8 1 600 Volts (FLSR) 8 10 2 4 2 9 35 90 250 15 1 DC: 125 Volts (FLNR) 100 1 2 4 5 10 40 100 300 2 1 1 6 300 Volts (FLSR) 10 1 8 2 2 5 10 12 45 110 350 1 1 8 Interrupting Ratings: AC: 200,000 am peres rm s symm etrical 4 1 4 2 10 6 15 50 125 400 3 4 1 1 ** DC: 20,000 am peres 10 1 10 3 6 4 17 2 60 150 450 1 4 1 2 Ampere Range: 10 600 am peres 10 1 2 3 10 7 20 70 175 500 1 6 1 1 Approvals: Standard 248-12, Class RK5 2 1 10 3 2 7 2 25 75 200 600 UL Listed (File No: E81895) **FLNR only, Example part nu m ber (series & ampe rage): FLSR100 CSA Certified (File No: LR29862) MSHA 300 Volt Listing (FLSR) QPL: Federal Specification WF-1814 Recommended Fuse Blocks LR250 series (for FLNR series fuses) Dimensions LR600 series (for FLSR series fuses) Refer to FLNR ID series for FLNR dim ensions and FLSR ID series for FLSR Refer to Blocks & Holders section of this catalog for additional informa tion. dim ensions. 2005 Littelfuse POWR-GARD Products Catalog www.littelfuse.com 33