POWR-GARD® Fuse Datasheet KLKD SERIES 10x38 FUSES 600 Vac/dc • 1/10 -30 A • Fast Acting Specifications Description The KLKD fuse series is fast-acting with a high DC voltage rating. This family of Midget style fuses (10 x 38 mm) is used in solar combiner boxes and in circuits with DC fault currents up to 50,000 amperes. KLKD fuses are available in standard and board-mount configurations. In addition, the KLKD series has been designed to meet both the UL and IEC photovoltaic fuse standards. Littelfuse offers a wide range of ampere ratings to match specific requirements in a variety of applications. Part Numbering System Features/Benefits • • • • • Voltage Rating: 600 Vac/Vdc Amperage Rating: 1/10, 1/8, 2 /10, 1/4, 3/10, 1/2, 3/4, 1, 11/2, 2, 21/2, 3, 31/2, 4, 5, 6, 7, 8, 9,10, 12, 15, 20, 25, 30 Interrupting Ratings: AC: 1 00 kA 200 kA Littelfuse self-certified DC: 1 /10 -30: 10 kA (UL 2579) 1/10 -30: 50 kA (UL 248-14) Material: Body: Melamine / Caps: Copper Alloy Operating Temperature: See Rerating Curve Approvals: UL 2579 Listed (File: E339112) IEC 60269-6 (2-25 A) VDE Certified (No. 40033094) UL 248-14 Listed (File: E10480) CSA Certified Ferrule only (File: LR29862) Environmental: RoHS Compliant Country of Origin: Mexico KLKD xxx H XR Designed to UL and IEC photovoltaic specifications 1/10 - 30 A ratings available 50,000 A Interrupting Rating Available in ferrule or PCB mount options 1-5 A meets UL1741 GFDI requirements Refer to Amp Code Column in Electrical Specifications Table • Combiner boxes and Inverters • Power supplies • Desktop meters PCB 1-Tab .06 (1.52) .02 (.51) 1.5 (38.1) .50 (12.7) MOUNTING METHOD FERRULE FERRULE PCB 1-TAB CATALOG NUMBER KLKD.125 KLKD005 KLKD015R ORDERING NUMBER KLKD.125T KLKD005.H KLKD015.HXR Only available in 100 packs (H) and select ratings. .09 (2.29) .03 (0.76) .058 (1.47) .201 (5.11) .020 (0.51) Recommended Fuse Holders Littelfuse LFPSM and LPSM Dead-Front Series Littelfuse L60030M Open-Face Series Web Resources 1.5 1.53 ±0.01 (38.1) Download CAD drawings (38.62 and ±0.25) other technical information: littelfuse.com/klkd 1.53 (38.86) .12 (3.05) .12 littelfuse.com T = 10 H = 100 * .14 (3.56) .04 (1.02) .406 (10.31) Package Quantity PACKAGE SERIES AMP QUANTITY KLKD 1/8 10 KLKD 5 100 KLKD 15 100 Dimensions Inches (mm) 1.5 (38.1) Blank = Ferrule XR* = PCB 1-tab Amp Code Applications Ferrule Version Mounting Options Series MOUNTING HOLE DETAIL .50 (12.7) MOUNTING HOLE DETAIL .15 .047 (1.19) .406 .28 (10.31) A .15 .20 .25 .31 .41 DETAIL A SCALE 12:1 1 of 6 © 2015 Littelfuse POWR-GARD® Products Rev: 062915 POWR-GARD® Fuse Datasheet KLKD SERIES 10x38 FUSES Ordering Information Ferrule Version AMP AMP RATING CODE CATALOG NUMBER ORDERING NUMBER VOLTAGE DC & AC INTERRUPTING RATING (kA) AC DC UPC WEIGHT LB (G) AGENCY APPROVALS UL VDE CSA 1/10 .100 KLKD 1/10 KLKD.100T 600 100 50 07945810189 .013 (5.90) • 1/8 .125 KLKD 1/8 KLKD.125T 600 100 50 07945810190 .013 (5.90) • • • 2/10 .20 KLKD 2/10 KLKD.200T 600 100 50 07945810191 .013 (5.90) • • 1/4 .250 KLKD 1/4 KLKD.250T 600 100 50 07945810192 .013 (5.90) • • 3/10 .300 KLKD 3/10 KLKD.300T 600 100 50 07945810193 .013 (5.90) • • 1/2 .500 KLKD ½ KLKD.500T 600 100 50 07945810194 .013 (5.90) • • 3/4 .750 KLKD 3/4 KLKD.750T 600 100 50 07945810195 .013 (5.90) • • • 1 001 KLKD 1 KLKD001.T 600 100 50 07945810196 .013 (5.90) • 1 1/2 01.5 KLKD 1 1/2 KLKD01.5T 600 100 50 07945810197 .013 (5.90) • 2 002 KLKD 2 KLKD002.T 600 100 50 07945810198 .017 (7.71) • 2 1/2 02.5 KLKD 2 1/2 KLKD02.5T 600 100 50 07945810199 .017 (7.71) • • • 3 003 KLKD 3 KLKD003.T 600 100 50 07945810200 .017 (7.71) • • • 3 1/2 03.5 KLKD 3 1/2 KLKD03.5T 600 100 50 07945810214 .017 (7.71) • • • • • • 4 004 KLKD 4 KLKD004.T 600 100 50 07945810201 .017 (7.71) • • • 5 005 KLKD 5 KLKD005.T 600 100 50 07945810202 .017 (7.71) • • • 6 006 KLKD 6 KLKD006.T 600 100 50 07945810203 .017 (7.71) • • • 7 007 KLKD 7 KLKD007.T 600 100 50 07945810204 .017 (7.71) • • • 8 008 KLKD 8 KLKD008.T 600 100 50 07945810205 .017 (7.71) • • • 9 009 KLKD 9 KLKD009.T 600 100 50 07945810215 .017 (7.71) • • • 10 010 KLKD 10 KLKD010.T 600 100 50 07945810206 .017 (7.71) • • • 12 012 KLKD 12 KLKD012.T 600 100 50 07945810207 .017 (7.71) • • • 15 015 KLKD 15 KLKD015.T 600 100 50 07945810208 .017 (7.71) • • • 20 020 KLKD 20 KLKD020.T 600 100 50 07945810209 .017 (7.71) • • • • • 25 025 KLKD 25 KLKD025.T 600 100 50 07945810210 .017 (7.71) • 30 030 KLKD 30 KLKD030.T 600 100 50 07945810211 .017 (7.71) • • PCB 1-Tab Version AMP AMP RATING CODE CATALOG NUMBER ORDERING NUMBER VOLTAGE RATING DC & AC INTERRUPTING RATING (kA) AC DC APPROVALS UPC UL CE 1/10 .100 KLKD 1/10 -R KLKD.100HXR 600 100 50 07945814857 • • 1/2 .500 KLKD ½ -R KLKD.500HXR 600 100 50 07945814858 • • 1 001 KLKD 1-R KLKD001.HXR 600 100 50 07945812133 • • 2 002 KLKD 2 -R KLKD002.HXR 600 100 50 07945894349 • • 3 003 KLKD 3 -R KLKD003.HXR 600 100 50 07945818991 • • 4 004 KLKD 4 -R KLKD004.HXR 600 100 50 07945811495 • • 5 005 KLKD 5 -R KLKD005.HXR 600 100 50 07945814859 • • 6 006 KLKD 6 -R KLKD006.HXR 600 100 50 07945894350 • • 8 008 KLKD 8 -R KLKD008.HXR 600 100 50 07945894351 • • 10 010 KLKD 10 -R KLKD010.HXR 600 100 50 07945814860 • • 12 012 KLKD 12 -R KLKD012.HXR 600 100 50 07945894352 • • 15 015 KLKD 15 -R KLKD015.HXR 600 100 50 07945894353 • • 20 020 KLKD 20 -R KLKD020.HXR 600 100 50 07945894354 • • 25 025 KLKD 25 -R KLKD025.HXR 600 100 50 07945894355 • • 30 030 KLKD 30 -R KLKD030.HXR 600 100 50 07945894356 • • littelfuse.com 2 of 6 © 2015 Littelfuse POWR-GARD® Products Rev: 062915 POWR-GARD® Fuse Datasheet KLKD SERIES 10x38 FUSES Electrical Specifications AMP RATING CATALOG NUMBER NOM COLD RESISTANCE (ohm) AVERAGE MELT TIME WATTS LOSS WATTS LOSS AVERAGE AT 100% RATED AT 80% RATED 2 MELTING I t CURRENT (W) CURRENT (W) AVERAGE CLEARING TIME TOTAL CLEARING I2t (A2 s) 20 kA TOTAL CLEARING I2t (A2 s) 100 kA 1/10 KLKD 1/10 85.5 – – 0.780 0.505 0.000047 0.019 – 1/8 KLKD 1/8 65 – – 0.975 0.659 0.000050 0.010 – 2/10 KLKD 2/10 30.9 – – 1.213 0.773 0.000073 0.032 – 1/4 KLKD 1/4 22 – – 1.364 0.870 – – – 3/10 KLKD 3/10 16.2 – – 1.519 0.960 0.000101 0.067 – 1/2 KLKD ½ 8.16 – – 1.961 1.237 0.000141 0.197 – 3/4 KLKD 3/4 0.402 0.000063 0.234 0.361 0.199 0.000170 0.753 – 1 KLKD 1 0.252 0.000094 0.678 0.388 0.273 0.000247 1.827 0.008 1 1/2 KLKD 1 1/2 0.134 0.000153 2.890 0.409 0.229 0.000828 13.956 280 2 KLKD 2 0.124 0.000145 2.379 0.823 0.606 0.000291 3.919 0.012 2 1/2 KLKD 2 1/2 0.0989 0.000186 5.142 0.912 0.618 0.000387 8.877 – 3 KLKD 3 0.0773 0.000211 7.821 0.957 0.654 0.000449 14.835 – 3 1/2 KLKD 3 1/2 0.0613 0.000249 12.417 1.12 0.826 0.000471 21.048 – 4 KLKD 4 0.0511 0.000284 18.945 1.367 0.891 0.000507 30.76 0.019 5 KLKD 5 0.0363 0.000347 34.163 1.4 0.938 0.000607 56.514 0.024 6 KLKD 6 0.0261 0.000423 62.951 1.516 0.998 0.000735 96.824 0.035 7 KLKD 7 0.0205 0.000505 105.143 1.577 1.066 0.000898 168.578 0.087 8 KLKD 8 0.0194 0.000541 130.266 1.824 1.205 0.000945 210.595 0.656 9 KLKD 9 0.0166 0.000587 164.221 2.208 1.428 0.000992 266.633 – 10 KLKD 10 0.0128 0.000701 278.390 1.893 1.3 0.001200 454.628 211.667 12 KLKD 12 0.0103 0.000822 445.010 2.296 1.584 0.001455 744.775 440 15 KLKD 15 0.00782 0.000544 137.333 2.045 1.57 0.001721 351.24 – 20 KLKD 20 0.0045 0.000826 462.056 2.133 1.593 0.006144 1151.185 2120 25 KLKD 25 0.003532 0.001007 834.529 2.55 1.933 0.002085 1744.033 2085 30 KLKD 30 0.002776 0.001207 1409 3.701 1.983 0.002266 2757 3220 Note: Test Circuit 600 Vac / 20 kA littelfuse.com 3 of 6 © 2015 Littelfuse POWR-GARD® Products Rev: 062915 POWR-GARD® Fuse Datasheet KLKD SERIES 10x38 FUSES Current-Limiting Effects SHORT CIRCUIT CURRENT* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS 1 1 /2 A 12 A 25 A 30 A 240 303 347 381 411 437 460 481 518 550 605 652 292 367 420 463 498 530 558 583 628 667 735 791 654 823 943 1037 1117 1188 1250 1307 1408 1496 1647 1774 722 910 1042 1147 1235 1313 1382 1445 1556 1654 1820 1961 *Prospective RMS Symmetrical Amperes Short-Circuit Current Electrical Specification – Agency Requirements AMPERAGE RATING 1/10 -30 OPENING TIME (MINUTES) 100% of Amp Rating per UL 113% of Amp Rating per IEC 135% of Amp Rating per UL 145% of Amp Rating per IEC 200% of Amp Rating per UL Temperature Stabilization 60 Min 60 Max 60 Max 4 Max PERCENT OF UPRATING Temperature Derating Curve (Temperature of Air Immediately Surrounding Fuse) 60 40 20 0 0 40 60 -60°C -76°F littelfuse.com -40°C -40°F -20°C -4°F 0°C 32°F 20°C 40°C 60°C 68°F 104°F 140°F AMBIENT TEMPERATURE 4 of 6 80°C 176°F 100°C 212°F 120°C 248°F PERCENT OF DOWNRATING 20 140°C 284°F © 2015 Littelfuse POWR-GARD® Products Rev: 062915 POWR-GARD® Fuse Datasheet KLKD SERIES 10x38 FUSES Recommended Process and Soldering Parameters WAVE PARAMETER LEAD FREE RECOMMENDATION Preheat: (Typical Industry Recommendation) Temperature Minimum: 130˚ C Temperature Maximum: — Pre-heat time 75 Seconds Maximum Solder Pot Temperature 280˚ C Maximum Solder Dwell Time 270˚ C for 8 Seconds Maximum Complete Cycle Time 250 Seconds Maximum Peak Let Thru Curve 1000000 100000 PEAK LET- THRU IN AMPERES 30A 25A 12A 1-1/2A 10000 1000 100 100 1000 10000 100000 1000000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES TEST VOLTAGE: 600 Vac TIME CONSTANT/ POWER FACTOR: BASIS FOR DATA: littelfuse.com LITTELFUSE, INC. 5 of 6 CHICAGO, IL USA PEAK LET-THRU CHARACTERISTIC CURVES FUSE CATALOG NUMBER KLKD 1-1/2A - 30A DRAWN BY: LLL DATE: 5/27/2011 REVISION : A DRAWING NO. Sheet 1 of 1 FCC05-KLKD © 2015 Littelfuse POWR-GARD® Products Rev: 062915 POWR-GARD® Fuse Datasheet KLKD SERIES 10x38 FUSES Time Current Curve - Curve 12 A) Time (3 Current Time Current Curve (1/8 -CURVE 21/2 A) TIME CURRENT 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 200 - 3/10 A 1 0.9 0.8 0.7 0.6 0.5 200 0.4 300 - 1/4 A 0.3 - 2/10 A 0.2 1000 900 800 700 600 500 400 - 1/8 A 300 0.1 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 1000 900 800 700 600 500 400 1000 900 800 700 600 500 1000 900 800 700 600 500 400 400 300 300 200 200 - 1/2 A 100 90 80 70 60 50 - 1-1/2 A 100 90 80 70 60 50 40 - 2A 40 30 - 2-1/2 A 30 - 3/4 A - 1A 10 9 8 7 6 5 4 10 9 8 7 6 5 4 3 3 2 2 1 0.9 0.8 0.7 0.6 0.5 0.4 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.3 0.2 0.1 0.09 0.08 0.07 0.06 0.05 - 4A - 5A 30 - 7A 20 20 - 8A - 9A 10 9 8 7 6 5 10 9 8 7 6 5 - 10 A - 12 A 4 4 3 3 2 2 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 0.4 0.4 0.3 0.3 0.2 0.2 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.04 0.04 0.03 0.03 0 .03 03 0 03 0.03 0.02 0.02 0.02 0.02 0.01 0.01 0.01 0.01 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 CURRENT IN AMPERES CURRENT IN AMPERES KLKD 3A -12A KLKD 1/8 - 2-1/2A (15 - 25 A) Time Current Curve Time Current Curve (30 A) Time Current Curve Time Current Curve 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 1000 900 800 700 600 500 1000 900 800 700 600 500 1000 900 800 700 600 500 400 400 400 400 300 300 300 300 200 200 200 200 100 90 80 70 60 50 100 90 80 70 60 50 100 90 80 70 60 50 100 90 80 70 60 50 40 40 40 30 30 30 20 20 20 30 - 15 A 20 - 20 A - 25 A 10 9 8 7 6 5 TIME IN SECONDS 1000 900 800 700 600 500 40 TIME IN SECONDS 40 - 6A 30 20 100 90 80 70 60 50 - 3-1/2A 1/2 A 40 TIME IN SECONDS TIME IN SECONDS 20 - 3A 100 90 80 70 60 50 10 9 8 7 6 5 10 9 8 7 6 5 - 30 A 10 9 8 7 6 5 4 4 3 3 2 2 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 4 4 3 3 2 2 0.04 0.04 0.04 0.04 0 03 0.03 0 03 0.03 0 03 0.03 0 03 0.03 0.02 0.02 0.02 0.02 0.01 0.01 0.01 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 0.9 0.8 0.7 0.6 0.5 0.4 KLKD 15A - 25A 0.3 0.1 littelfuse.com 0.01 0.2 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 CURRENT IN AMPERES CURRENT IN AMPERES 6 of 6 KLKD 30A © 2015 Littelfuse POWR-GARD® Products Rev: 062915