Midget Fuses Supplementary Overcurrent Protection KLK Fuses Ampere Ratings: FAST-ACTING ■ 600 VAC ⁄10 ⁄8 2 ⁄10 1 ⁄4 3 ⁄10 1 ⁄2 3 ⁄4 Approvals: Fast-acting, high-interrupting capacity, current-limiting type fuse. Especially suited for control circuits, street lighting, H.I.D. lighting, computers, and other applications without high inrush currents. Voltage Rating: 600 Volts AC 500 Volts DC Interrupting Rating: UL Listed 100,000 amperes rms symmetrical (Capable of 200,000 amperes) 1 1 1 11⁄2 2 21⁄2 3 31⁄2 4 5 6 7 8 9 10 12 15 20 25 30 Standard 248-14 UL Listed 3/10-30A (File No: E10480) CSA Certified 3/10-30A (File No: LR29862) Versions available to meet MIL-F-5160/60, QPL F60C: Contact Factory. Dimensions: 13/32" x 1-1/2" Example part number (series & amperage): KLK 1-1/2 KLKD Fuses FAST-ACTING ■ 600 VAC/DC Fast-acting, high-interrupting capacity, current-limiting type fuse. Especially suited for DC control circuits, street lighting, H.I.D. lighting, computers, and other applications. Voltage Rating: 600 Volts AC/DC Interrupting Rating: AC: 100,000 amperes rms symmetrical; DC: 10,000 amperes Ampere Ratings: 1 ⁄10 1 4 10 1 ⁄8 11⁄2 5 12 2 ⁄10 2 6 15 1 ⁄4 21⁄2 7 20 3 ⁄10 3 8 25 1 ⁄2 31⁄2 9 30 3 ⁄4 Approvals: Standard 248-14 UL Listed 3/10-30A (File No: E10480) CSA Certified 3/10-30A (File No: LR29862) Dimensions: 13/32" x 1-1/2" Example part number (series & amperage): KLKD 30 FLM Fuses TIME-DELAY ■ 250 VAC Use FLM 250 volt time-delay fuses to protect control circuit transformers, solenoids, and other circuits with high inrush currents. Excellent for supplemental protection of small motors. For motor branch-circuit protection, See Class CC fuses. Voltage Rating: 250 Volts AC Interrupting Rating: AC: 10,000 amperes rms symmetrical. Ampere Ratings: 1 ⁄10 11⁄8 3 7 15 ⁄100 11⁄4 32⁄10 8 2 4 1 ⁄10 1 ⁄10 3 ⁄2 9 1 ⁄4 11⁄2 4 10 3 ⁄10 16⁄10 41⁄2 12 4 ⁄10 18⁄10 5 15 1 6 ⁄2 2 5 ⁄10 20 6 ⁄10 21⁄4 6 25 8 ⁄10 21⁄2 61⁄4 30 1 28⁄10 Approvals: Standard 248-14 UL Listed (File No: E10480) CSA Certified (File No: LR29862) Dimensions: 13/32" x 1-1/2" Example part number (series & amperage): FLM 15 FLQ Fuses TIME-DELAY ■ 500 VAC These 500 volt time-delay fuses provide excellent supplemental protection of control power transformers, solenoids, and circuits with high inrush currents. UL and CSA 500 volt ratings permit use on 480 volt circuits. FLQ fuses also provide supplemental protection to small motors. For motor branch-circuit protection, see Class CC fuses. Voltage Rating: 500 Volts AC Interrupting Rating: 10,000 amperes rms symmetrical Ampere Ratings: 1 8 ⁄10 ⁄10 32⁄10 8 1 ⁄8 1 31⁄2 9 15 1 ⁄100 1 ⁄8 4 10 3 ⁄16 11⁄4 41⁄2 12 2 ⁄10 11⁄2 5 14 1 ⁄4 16⁄10 56⁄10 15 3 ⁄10 2 6 20 4 ⁄10 21⁄4 61⁄4 25 1 ⁄2 21⁄2 7 30 6 ⁄10 3 Approvals: Standard 248-14 UL Listed (File No: E10480) CSA Certified (File No: LR29862) Dimensions: 13/32" x 1-1/2" Example part number (series & amperage): FLQ 1/2 RECOMMENDED FUSE BLOCKS L60030M series. Refer to Fuse Block section of this catalog for additional information. 49 Midget Fuses Supplementary Overcurrent Protection Ampere Ratings: BLN Fuses FAST-ACTING ■ 250 VAC Fiber tube, 250 volt BLN fuses provide lowcost protection for military applications and control circuits. Voltage Rating: 250 Volts AC Interrupting Rating: 10,000 amperes rms symmetrical 1 2 3 4 5 6 8 10 12 15 20 25 30 Approvals: Standard 248-14 UL Listed (File No: E10480) CSA Certified (File No: LR29862) Versions available to meet MIL-F-15160/9, QPL F09A: Contact Factory Dimensions: 13/32" x 1-1/2" Example part number (series & amperage): BLN 30 BLF Fuses Ampere Ratings: FAST-ACTING ■ 125/250 VAC Laminated tube BLF fuses are the lowest price midget fuse. They are suitable for control circuit and instrument protection in dry locations. Voltage Ratings: 250 Volts AC: 1/2 – 15 amperes; 125 Volts AC: 20 – 30 amperes Interrupting Rating: 10,000 amperes rms symmetrical ⁄2 1 11⁄2 2 21⁄2 1 3 4 5 6 61⁄4 7 8 9 10 12 15 20 25 30 Approvals: Standard 248-14 UL Listed (File No: E10480) CSA Certified (File No: LR29862) Dimensions: 13/32" x 1-1/2" Example part number (series & amperage): BLF 5 BLS Fuses Ampere Ratings: ⁄10 ⁄10 ⁄2 3 ⁄4 8 ⁄10 FAST-ACTING ■ 250/600 VAC 2 BLS fuses are 1-3/8" long in contrast to other midget fuses which are 1-1/2". They provide space-saving, low-cost, protection to street lighting, metering, control and electronic circuits. 1 Voltage Rating: 600 Volts AC: 2/10 – 5 amperes; 250 Volts AC: 6 – 10 amperes Interrupting Rating: 10,000 amperes rms symmetrical 4 1 11⁄2 16⁄10 18⁄10 2 3 4 5 6 7 8 10 Approvals: Standard 248-14 UL Listed 1/2-5 Amps (File No: E10480) CSA Certified 1/2 – 5 Amps (File No: LR29862) Dimensions: 13/32" x 1-3/8" Example part number (series & amperage): BLS 10 FLA Fuses Ampere Ratings: TIME-DELAY ■ 125 VAC ⁄10 ⁄100 2 ⁄10 1 ⁄4 3 ⁄10 4 ⁄10 1 ⁄2 6 ⁄10 8 ⁄10 1 Approvals: FLA fuses are 125 volt, pin-indicating timedelay fuses for protection of control circuit transformers, solenoids, and other circuits with high inrush currents. Metal indicating pin “pops-out” when fuse opens. Pin gives visual indication of open fuse. Use FLA fuses in conjunction with special fuseblocks to operate mechanical signal switches or energize alarm circuits. Fuses rated 12 amperes and above have dual-tube construction. Voltage Rating: 125 Volts AC Interrupting Rating: 10,000 amperes rms symmetrical 1 15 11⁄8 11⁄4 14⁄10 11⁄2 16⁄10 18⁄10 2 21⁄4 21⁄2 28⁄10 3 32⁄10 31⁄2 4 41⁄2 5 56⁄10 6 61⁄4 7 8 10 12 * 15 * 20 * 25 * 30 * Standard 248-14 UL Listed (File No: E10480) CSA Certification Pending Dimensions: 13/32" x 1-1/2" * Note: Dual tube construction Example part number (series & amperage): FLA 15 RECOMMENDED FUSE BLOCKS L60030M series. Refer to Fuse Block section of this catalog for additional information. 50 Midget Fuses Supplementary Overcurrent Protection SPECIFICATIONS NEW Voltage Rating: 600VAC Interrupting Rating: 10,000 amperes Ampere Range: 1 – 6 amperes Approvals: Standard 248-14 UL Listed (File No: E10480) Dimensions: 13/32" x 1-3/8" AMPERE RATINGS 1 1-6/10 2 3 4 5 6 RECOMMENDED FUSE BLOCKS L60030M Series. Refer to Fuse Block section of this catalog for additional information. ORDERING INFORMATION Example catalog number: KLQ005 Example system number: 0KLQ005.T CROSS REFERENCE KLQ Series Fuses Littelfuse Buss Ferraz-Shawmut KLQ KTQ – The Littelfuse KLQ series is designed to protect gaseous vapor fixtures, HID ballasts, and other electronic and lighting circuits. The KLQ is the same physical size as the Littelfuse BLS, but has more time delay to handle transient and inrush currents. SPECIFICATIONS NEW Voltage Rating: 1000 VAC/VDC Interrupting Rating: 44/100A: 10kA 11A: 20kA Ampere Range: 44/100 and 11 amperes Approvals: UL Recognized under the components program. (File No: E10480) CSA Certified (File No: LR29862) Dimensions: 44/100A: 13/32" x 1-3/8" 11A: 13/32" x 1-1/2" ORDERING INFORMATION Example catalog number: FLU011 Example system number: 0FLU011.T CROSS REFERENCE Littelfuse Buss Ferraz-Shawmut FLU DMM – FLU Series Fuses The Littelfuse FLU series is designed specifically for the protection of multimeters. The 1000 VAC/VDC rating also makes the FLU ideal for a variety of other applications. 51 .01 52 CURRENT IN AMPERES .01 .01 CURRENT IN AMPERES 1000 800 600 400 300 400 300 200 200 100 80 60 100 80 60 40 30 40 30 20 20 10 8 6 10 8 6 4 3 2 1 .8 .6 .4 .3 .2 .2 .1 .08 .06 .1 .08 .06 .04 .03 .04 .03 .02 .02 .01 CURRENT IN AMPERES 60 80 100 30 40 600 800 1000 1 .8 .6 300 400 2 6000 8000 10000 4 3 200 FLQ 3000 4000 CURRENT IN AMPERES 2000 .4 .3 600 800 1000 .1 .08 .06 20 .1 .08 .06 300 400 .2 200 .4 .3 .2 6 8 10 .4 .3 3 4 1 .8 .6 60 80 100 2 2 20 .6 .8 1 40 30 3/4A 1A 1 1/2A 2A 2 1/2A 3A 3 1/2A 4A 5A 6A 7A 8A 9A 10A 12A 15A 20A 25A 30A 2/10A 1/4A 3/10A 1/2A 1/8A 3/4A 1A 1 1/2A 2A 2 1/2A 3A 3 1/2A 4A 5A 6A 7A 8A 9A 10A 12A 15A 20A 25A 30A 1/8A 2/10A 1/4A 3/10A 1/2A 40 30 .3 .4 100 80 60 .2 4 3 .1 10 8 6 TIME IN SECONDS 200 100 80 60 30 40 .02 600 800 1000 400 300 200 20 8A 9A 10A 12A 14A 15A 20A 25A 30A 200 300 400 400 300 6 8 10 .04 .03 .02 60 80 100 30 40 20 1000 800 600 3 4 .04 .03 6 8 10 3 4 2 .6 .8 1 .3 .4 1000 800 600 2 1000 800 600 TIME IN SECONDS 15A 20A 25A 30A 8A 10A 2A 1 1/2A 1A 1/2A 1/4A .1 .2 TIME IN SECONDS KLK 1 600 800 1000 300 400 200 60 80 100 30 40 20 6 8 10 3 4 2 .6 .8 1 .3 .4 1/10A 15/100A FLM .2 .1 TIME IN SECONDS Midget Fuses Supplementary Overcurrent Protection KLKD 10 8 6 20 4 3 2 1 .8 .6