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KLDR025.TXP
POWER FUSE, TIME DELAY, 25A, 600VAC
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- Manufacturer: LITTELFUSE
- Product type: Industrial & Electrical Power Fuses
- Product Range:POWR-GARD KLDR Series; Fuse Current:25A; Voltage Rating VAC:600V; Voltage Rating VDC:300V; Fuse Size Metric:10.3mm x 38.1mm; Fuse Size Imperial:0.41" x 1.5" 64W5771
- Fuse Current: 25A
- Product Range: POWR-GARD KLDR Series
- Fuse Size Metric: 10.3mm x 38.1mm
- Fuse Size Imperial: 0.41" x 1.5"
- Voltage Rating VAC: 600V
- Voltage Rating VDC: 300V
- Blow Characteristic: Time Delay
| Delivery and price | |
|---|---|
| Units per pack | 500 |
| Price | 14.2 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**POWR-GARD[®] Fuse Datasheet** ## CLAS ~~S C~~ C KLD ~~R~~ SERIE ~~S FUSES~~ 600 Vac • 300 Vdc • Time-Delay •[1] /10-30 A ## **Specifications** ## **Description** KLDR fuses are time-delay fuses designed to protect control transformers, so le noids and similar inductive components with high mag ne tiz ing currents during the first half-cycle. They provide ex cel lent protection of motor branch circuits con tain ing IEC or NEMA rated motor con trol lers or contactors. ## **Features/Benefits** - Meets UL and CSA standards - Class CC fuses are the smallest 600 V, 200,000 A.I.R. fuses approved for branch circuit protection - Rejection feature prevents use of fuses with lower interrupting ratings or voltage ratings when used with corresponding fuse holders - Extremely current limiting reduces damage caused by heating and magnetic effects of short-circuit currents ## **Applications** - Transformer Protection ## **Web Resources** For additional informations, visit: **littelfuse.com/kldr** ## **Recommended Fuse Holders** **Voltage Rating** AC: 600 V DC: 300 V **Amperage Rating** 1/10 – 30 A **Interrupting Rating** AC: 200 kA rms symmetrical DC: 20 kA **Material** Body: Melamine Caps: Nickel-plated Bronze **Fuse Weight** .019 lb (8.62g) **Approvals** AC: Standard 248-4, Class CC UL Listed[1] /10-30 A (File: E81895) CSA Certified[1] /10-30 A (File: LR29862) DC: Littelfuse self-certified **Environmental** RoHS Compliant **Country of Origin** Mexico ## **Ordering Information** |1/10<br>1/8<br>15/100<br>3/16<br>2/10<br>1/4<br>3/10<br>4/10<br>1/2|AMPERAGE RATINGS<br>6/10<br>18/10<br>41/2<br>3/4<br>2<br>5<br>8/10<br>21/4<br>56/10<br>1<br>21/2<br>6<br>11/8<br>28/10<br>61/4<br>11/4<br>3<br>7<br>14/10<br>32/10<br>71/2<br>11/2<br>31/2<br>8<br>16/10<br>4<br>9|10<br>12<br>15<br>171/2<br>20<br>25<br>30<br>—<br>—| |---|---|---| ## **Part Numbering System** **KLDR xxx T XP Options Series** XP = RoHS Compliant **Amp Code** ~~IL~~ **Package Quantity** Refer to Amp Code T = 10 Column in Electrical H = 100 Specifications Table PACKAGE CATALOG ORDERING SERIES AMPERAGE QUANTITY NUMBER NUMBER KLDR 10 10 KLDR 10 KLDR010.TXP L60030C Series LPSC Touch-Safe Series ## **Dimensions Inches (mm)** **==> picture [135 x 85] intentionally omitted <==** **----- Start of picture text -----**<br> .25<br>1.50 (6.4)<br>(38.1)<br>.41<br>0-30 A<br>(10.3)<br>. 125<br>— .50 [|= (3.2)<br>(12.7)<br>**----- End of picture text -----**<br> **1 of 7** © 2016 Littelfuse POWR-GARD[®] Products Rev: 041416 littelfuse.com **POWR-GARD[®] Fuse Datasheet** ## CLAS ~~S C~~ C KLD ~~R~~ SERIE ~~S FUSES~~ ## **Electrical Specifications** **==> picture [442 x 624] intentionally omitted <==** **----- Start of picture text -----**<br> VOLTAGE INTERRUPTING AGENCY<br>ORDERING AMPERAGE RATING RATING UPC MELT (PRE-ARC) TOTAL CLEARING APPROVALS<br>NUMBER RATING I [2] T (A [2] SEC) I [2] T (A [2 ] SEC)<br>AC DC AC DC UL CSA RoHS<br>KLDR.100TXP 1/10 600 300 200 kA 20 kA 079458 96877 0.0004 0.0059 • • •<br>KLDR.125TXP 1/8 600 300 200 kA 20 kA 079458 96878 0.0007 0.0055 • • •<br>KLDR.150TXP 15/100 600 300 200 kA 20 kA 079458 96879 0.0016 0.0059 • • •<br>KLDR.187TXP 3/16 600 300 200 kA 20 kA 079458 96880 0.0040 0.0267 • • •<br>KLDR.200TXP 2/10 600 300 200 kA 20 kA 079458 79239 0.0018 0.0230 • • •<br>KLDR.250TXP 1/4 600 300 200 kA 20 kA 079458 79240 0.0138 0.0967 • • •<br>KLDR.300TXP 3/10 600 300 200 kA 20 kA 079458 79241 0.0111 0.1005 • • •<br>KLDR.400TXP 4/10 600 300 200 kA 20 kA 079458 79242 0.0579 0.1420 • • •<br>KLDR.500TXP 1/2 600 300 200 kA 20 kA 079458 79243 0.0877 0.3121 • • •<br>KLDR.600TXP 6/10 600 300 200 kA 20 kA 079458 79244 0.1404 0.3742 • • •<br>KLDR.750TXP 3/4 600 300 200 kA 20 kA 079458 79245 0.2911 1.972 • • •<br>KLDR.800TXP 8/10 600 300 200 kA 20 kA 079458 79246 0.2416 2.064 • • •<br>KLDR001.TXP 1 600 300 200 kA 20 kA 079458 79247 0.4494 5.883 • • •<br>KLDR1.12TXP 1-1/8 600 300 200 kA 20 kA 079458 79248 0.5049 5.149 • • •<br>KLDR1.25TXP 1-1/4 600 300 200 kA 20 kA 079458 79249 0.4367 7.354 • • •<br>KLDR01.4TXP 1-4/10 600 300 200 kA 20 kA 079458 79250 0.8135 7.639 • • •<br>KLDR01.5TXP 1-1/2 600 300 200 kA 20 kA 079458 79251 0.9302 5.885 • • •<br>KLDR01.6TXP 1-6/10 600 300 200 kA 20 kA 079458 79252 0.7495 6.682 • • •<br>KLDR01.8TXP 1-8/10 600 300 200 kA 20 kA 079458 79253 0.9964 6.594 • • •<br>KLDR002.TXP 2 600 300 200 kA 20 kA 079458 79254 0.8615 14.01 • • •<br>KLDR2.25TXP 2-1/4 600 300 200 kA 20 kA 079458 79255 1.126 26.41 • • •<br>KLDR02.5TXP 2-1/2 600 300 200 kA 20 kA 079458 79256 2.087 35.35 • • •<br>KLDR02.8TXP 2-8/10 600 300 200 kA 20 kA 079458 79257 21.28 45.47 • • •<br>KLDR003.TXP 3 600 300 200 kA 20 kA 079458 79258 23.21 55.99 • • •<br>KLDR03.2TXP 3-2/10 600 300 200 kA 20 kA 079458 79259 37.92 57.27 • • •<br>KLDR03.5TXP 3-1/2 600 300 200 kA 20 kA 079458 79260 21.42 109.4 • • •<br>KLDR004.TXP 4 600 300 200 kA 20 kA 079458 79261 83.81 258.6 • • •<br>KLDR04.5TXP 4-1/2 600 300 200 kA 20 kA 079458 79262 83.89 110.6 • • •<br>KLDR005.TXP 5 600 300 200 kA 20 kA 079458 79263 63.33 84.04 • • •<br>KLDR05.6TXP 5-6/10 600 300 200 kA 20 kA 079458 79264 87.66 114.0 • • •<br>KLDR006.TXP 6 600 300 200 kA 20 kA 079458 79265 129.5 161.9 • • •<br>KLDR6.25TXP 6-1/4 600 300 200 kA 20 kA 079458 79266 147.6 261.7 • • •<br>KLDR007.TXP 7 600 300 200 kA 20 kA 079458 79267 202.4 513.4 • • •<br>KLDR07.5TXP 7-1/2 600 300 200 kA 20 kA 079458 79268 321.8 813.0 • • •<br>KLDR008.TXP 8 600 300 200 kA 20 kA 079458 79269 111.2 1,145 • • •<br>KLDR009.TXP 9 600 300 200 kA 20 kA 079458 79270 73.40 1,334 • • •<br>KLDR010.TXP 10 600 300 200 kA 20 kA 079458 79271 132.0 934.8 • • •<br>KLDR012.TXP 12 600 300 200 kA 20 kA 079458 79272 154.7 1,723 • • •<br>KLDR015.TXP 15 600 300 200 kA 20 kA 079458 79273 200.5 2,248 • • •<br>KLDR17.5TXP 17-1/2 600 300 200 kA 20 kA 079458 79274 87.50 722.8 • • •<br>KLDR020.TXP 20 600 300 200 kA 20 kA 079458 79275 123.8 1,363 • • •<br>KLDR025.TXP 25 600 300 200 kA 20 kA 079458 79276 226.0 1,710 • • •<br>KLDR030.TXP 30 600 300 200 kA 20 kA 079458 79277 299.6 1,990 • • •<br>**----- End of picture text -----**<br> **2 of 7** © 2016 Littelfuse POWR-GARD[®] Products Rev: 041416 littelfuse.com **POWR-GARD[®] Fuse Datasheet** **==> picture [93 x 32] intentionally omitted <==** ## **Electrical Specifications** **==> picture [209 x 111] intentionally omitted <==** **----- Start of picture text -----**<br> WATTS LOSS<br>ORDERING AMPERAGE WATTS LOSS AT 80%<br>AT 100% RATED<br>NUMBER RATING RATED CURRENT(W)<br>CURRENT(W)<br>KLDR001.TXP 1 1.67 1.34<br>KLDR005.TXP 5 1.31 0.75<br>KLDR010.TXP 10 1.41 .86<br>KLDR015.TXP 15 1.72 1.03<br>KLDR020TXP 20 2.3 1.39<br>KLDR030.TXP 30 2.75 1.62<br>**----- End of picture text -----**<br> ## **Current-Limiting Effects** **==> picture [505 x 175] intentionally omitted <==** **----- Start of picture text -----**<br> SHORT CIRCUIT APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS<br>CURRENT* 4 A 6 A 7.5 A 8 A 10 A 12 A 15 A 20 A 30 A<br>5,000 349 420 521 437 359 369 435 456 621<br>10,000 440 529 656 551 452 465 548 575 783<br>15,000 504 605 751 631 517 532 627 658 896<br>20,000 554 666 827 694 569 585 690 724 986<br>25,000 597 718 890 748 613 630 743 780 1063<br>30,000 634 763 946 795 651 670 790 829 1129<br>35,000 668 803 996 837 686 705 832 872 1189<br>40,000 698 840 1041 875 717 737 870 912 1243<br>50,000 752 904 1122 942 772 794 937 983 1339<br>60,000 799 961 1192 1001 821 844 995 1044 1423<br>80,000 880 1058 1312 1102 903 929 1096 1149 1566<br>100,000 948 1139 1413 1187 973 1001 1180 1238 1687<br>150,000 1085 1304 1618 1359 1114 1146 1351 1417 1931<br>200,000 1194 1436 1781 1496 1226 1261 1487 1560 2125<br>**----- End of picture text -----**<br> *Prospective RMS Symmetrical Amperes Short-Circuit Current _Note: Data Derived from Peak Let-Thru Curves_ ## **Temperature Derating Curve (Temperature of Air Immediately Surrounding Fuse)** **==> picture [335 x 242] intentionally omitted <==** **----- Start of picture text -----**<br> 60<br>40<br>20<br>0 0<br>20<br>40<br>60<br>-60°C -40°C -20°C 0°C 20°C 40°C 60°C 80°C 100°C 120°C 140°C<br>-76°F -40°F -4°F 32°F 68°F 104°F 140°F 176°F 212°F 248°F 284°F<br>AMBIENT TEMPERATURE<br>PERCENT OF UPRATING<br>PERCENT OF DOWNRATING<br>**----- End of picture text -----**<br> **3 of 7** © 2016 Littelfuse POWR-GARD[®] Products Rev: 041416 littelfuse.com **POWR-GARD[®] Fuse Datasheet** **==> picture [93 x 32] intentionally omitted <==** ## CLAS ~~S C~~ C KLD ~~R~~ SERIE ~~S FUSES~~ ## **Peak Let-Thru Curves** **==> picture [505 x 290] intentionally omitted <==** **----- Start of picture text -----**<br> 1,000,000 1,000,000<br>100,000 100,000<br>6A - 8A -<br>4A -<br>10,000 10,000<br>1,000 1,000<br>100 100<br>100 1,000 10,000 100,000 100 1,000 10,000 100,000<br>AVAILABLE FAULT CURRENT AVAILABLE FAULT CURRENT<br>SYMMETRICAL R.M.S. AMPERES SYMMETRICAL R.M.S. AMPERES<br>PEAK LET- THRU IN AMPERES PEAK LET- THRU IN AMPERES<br>**----- End of picture text -----**<br> **==> picture [244 x 290] intentionally omitted <==** **----- Start of picture text -----**<br> 1,000,000<br>100,000<br>10A -<br>10,000<br>1,000<br>100<br>100 1,000 10,000 100,000<br>AVAILABLE FAULT CURRENT<br>SYMMETRICAL R.M.S. AMPERES<br>PEAK LET- THRU IN AMPERES<br>**----- End of picture text -----**<br> **==> picture [244 x 290] intentionally omitted <==** **----- Start of picture text -----**<br> 1,000,000<br>100,000<br>15A -<br>12A -<br>10,000<br>1,000<br>100<br>100 1,000 10,000 100,000<br>AVAILABLE FAULT CURRENT<br>SYMMETRICAL R.M.S. AMPERES<br>PEAK LET- THRU IN AMPERES<br>**----- End of picture text -----**<br> **4 of 7** © 2016 Littelfuse POWR-GARD[®] Products Rev: 041416 littelfuse.com **POWR-GARD[®] Fuse Datasheet** **==> picture [93 x 32] intentionally omitted <==** ## CLAS ~~S C~~ C KLD ~~R~~ SERIE ~~S FUSES~~ ## **Peak Let-Thru Curves** **==> picture [244 x 290] intentionally omitted <==** **----- Start of picture text -----**<br> 1,000,000<br>100,000<br>30A -<br>20A -<br>10,000<br>1,000<br>100<br>100 1,000 10,000 100,000<br>AVAILABLE FAULT CURRENT<br>SYMMETRICAL R.M.S. AMPERES<br>PEAK LET- THRU IN AMPERES<br>**----- End of picture text -----**<br> ## **Time Current Curves** **==> picture [244 x 284] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700<br>600 500 - 1/10A 600 500<br>400 - 1/8A 400<br>300 - 15/100A 300<br>200 - 3/16A 200<br>- 2/10A<br>- 1/4A<br>100 90 80 70 100 90 80 70<br>60 60<br>50 50<br>40 40<br>30 30<br>20 20<br>10 9 8 7 10 9 8 7<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06<br>0.05 0.05<br>0.04 0.04<br>0.03 0.03<br>0.02 0.02<br>0.01 0.01<br>CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **==> picture [244 x 284] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700<br>600 600<br>500 500<br>400 400<br>300 300<br>- 3/10A<br>200 - 4/10A 200<br>- 1/2A<br>100 90 80 70 60 50 - 6/10A - 3/4A - 8/10A 100 90 80 70 60 50<br>40 40<br>30 30<br>20 20<br>10 9 8 7 10 9 8 7<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06<br>0.05 0.05<br>0.04 0.04<br>0.03 0.03<br>0.02 0.02<br>0.01 0.01<br>CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **5 of 7** © 2016 Littelfuse POWR-GARD[®] Products Rev: 041416 littelfuse.com **POWR-GARD[®] Fuse Datasheet** **==> picture [93 x 32] intentionally omitted <==** ## CLAS ~~S C~~ C KLD ~~R~~ SERIE ~~S FUSES~~ ## **Time Current Curves** **==> picture [244 x 286] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>100 90 80 70 100 90 80 70<br>60 60<br>50 50<br>40 - 1A 40<br>30 - 1-1/8A 30<br>20 - 1-1/4A 20<br>- 1-4/10A<br>10 9 8 7 10 9 8 7<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06<br>0.05 0.05<br>0.04 0.04<br>0.03 0.03<br>0.02 0.02<br>0.01 0.01<br>CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **==> picture [244 x 285] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>100 90 80 70 100 90 80 70<br>60 60<br>50 50<br>40 - 2-1/2A 40<br>30 - 2-8/10A 30<br>20 20<br>10 9 8 7 10 9 8 7<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06<br>0.05 0.05<br>0.04 0.04<br>0.03 0.03<br>0.02 0.02<br>0.01 0.01<br>CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **==> picture [244 x 286] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>100 90 80 70 100 90 80 70<br>60 60<br>50 50<br>40 - 1-1/2A 40<br>30 - 1-6/10A 30<br>20 - 1-8/10A 20<br>- 2A<br>- 2-1/4A<br>10 9 8 7 10 9 8 7<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06<br>0.05 0.05<br>0.04 0.04<br>0.03 0.03<br>0.02 0.02<br>0.01 0.01<br>CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **==> picture [244 x 285] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>100 90 80 70 100 90 80 70<br>60 60<br>50 50<br>40 40<br>30 - 3A 30<br>20 - 3-2/10A 20<br>- 3-1/2A<br>- 4A<br>10 9 8 7 10 9 8 7<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06<br>0.05 0.05<br>0.04 0.04<br>0.03 0.03<br>0.02 0.02<br>0.01 0.01<br>CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **6 of 7** © 2016 Littelfuse POWR-GARD[®] Products Rev: 041416 littelfuse.com **POWR-GARD[®] Fuse Datasheet** **==> picture [93 x 32] intentionally omitted <==** ## CLAS ~~S C~~ C KLD ~~R~~ SERIE ~~S FUSES~~ ## **Time Current Curves** **==> picture [244 x 286] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700<br>600 600<br>500 500<br>400 - 4-1/2A 400<br>300 - 5A 300<br>200 - 5-6/10A 200<br>- 6A<br>100 90 80 70 100 90 80 70<br>60 60<br>50 50<br>40 40<br>30 30<br>20 20<br>10 9 8 7 10 9 8 7<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06<br>0.05 0.05<br>0.04 0.04<br>0.03 0.03<br>0.02 0.02<br>0.01 0.01<br>CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **==> picture [244 x 286] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>100 90 80 70 - 6-1/4A - 7.5A 100 90 80 70<br>60 60<br>50 50<br>40 40<br>30 30<br>20 20<br>10 9 8 7 10 9 8 7<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6<br>0.5 0.5<br>0.4 0.4<br>0.3 0.3<br>0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06<br>0.05 0.05<br>0.04 0.04<br>0.03 0.03<br>0.02 0.02<br>0.01 0.01<br>CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **==> picture [505 x 285] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 1000 900 800 700 1000 900 800 700 1000 900 800 700<br>600 600 600 600<br>500 500 500 500<br>400 - 8A 400 400 400<br>300 300 300 - 20A 300<br>- 10A<br>200 200 200 - 25A 200<br>- 12A - 30A<br>100 90 80 70 - 15A 100 90 80 70 100 90 80 70 100 90 80 70<br>60 60 60 60<br>50 50 50 50<br>40 40 40 40<br>30 30 30 30<br>20 20 20 20<br>10 9 8 7 10 9 8 7 10 9 8 7 10 9 8 7<br>6 6 6 6<br>5 5 5 5<br>4 4 4 4<br>3 3 3 3<br>2 2 2 2<br>0.9 0.8 0.7 1 0.9 0.8 0.7 1 0.9 0.8 0.7 1 0.9 0.8 0.7 1<br>0.6 0.6 0.6 0.6<br>0.5 0.5 0.5 0.5<br>0.4 0.4 0.4 0.4<br>0.3 0.3 0.3 0.3<br>0.2 0.2 0.2 0.2<br>0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1 0.09 0.08 0.07 0.1<br>0.06 0.06 0.06 0.06<br>0.05 0.05 0.05 0.05<br>0.04 0.04 0.04 0.04<br>0.03 0.03 0.03 0.03<br>0.02 0.02 0.02 0.02<br>0.01 0.01 0.01 0.01<br>CURRENT IN AMPERES CURRENT IN AMPERES<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>TIME IN SECONDS TIME IN SECONDS<br>0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000<br>**----- End of picture text -----**<br> **7 of 7** © 2016 Littelfuse POWR-GARD[®] Products Rev: 041416 littelfuse.com
Updated at April 17, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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