Image not available
Illustrative purposes only
JLLS035.T
Fuse, Industrial / Power, Class T, POWR-T JLLS, 35 A, 600 VAC, 300 VDC, 25.4mm x 39.7mm
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: LITTELFUSE
- Product type: Industrial & Electrical Power Fuses
- Product Range:POWR-T JLLS Series; Fuse Current:35A; Voltage Rating VAC:600VAC; Voltage Rating V DC:300VDC; Fuse Size Metric:25.4mm x 39.7mm; Fuse Size Imperial:1" x 1-9/16"; Blow Character
- SVHC: No SVHC (17-Dec-2014)
- Fuse Current: 35A
- Product Range: POWR-T JLLS
- Fuse Size Metric: 25.4mm x 39.7mm
- Fuse Size Imperial: 1" x 1-9/16"
- Voltage Rating VAC: 600VAC
- Voltage Rating VDC: 300VDC
- Blow Characteristic: Fast Acting
| Delivery and price | |
|---|---|
| Units per pack | 20 |
| Price | 32.45 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES ## 300/600 V ac • Fast-Acting • 1–1200 A ## **Specifications** ## **Description** JLLN / JLLS series fuses are less than[1] /3 the size of comparable Class R fuses and are typically used for short circuit protection of drives and surge sensitive components. When rated in accordance with the NEC*, JLLN / JLLS fuses provide fast-acting overload and short circuit protection for non-inductive circuits and equipment. ## **Features/Benefits** Extremely current-limiting Compact design 200 kA interrupting rating JLLN 35–60 amperes available with PCB mounts ## **Applications** Variable speed drive protection Power conversion devices (inverters, rectifiers, UPS) Power supplies and power distribution units Compact mains switches ## **Recommended Fuse Holders** LFT30 series LFT60 series LSCR series for 70–800 amperes ## **Web Resources** Download TC curves, CAD drawings and other technical information: **Littelfuse.com/jlln** **Littelfuse.com/jlls** *NEC is a trademark of its respective owner. **JLLN Voltage Ratings** Ac: 300 V Dc: 160 V (1–60 A) 125 V (70–1200 A) 1–1200 A **Ampere Range Interrupting Ratings Approvals** Ac: 200 kA rms symmetrical Dc: 50 kA (1–30 A) 20 kA (35–1200 A) Ac: UL Standard 248-15, Class T UL Listed (File: E81895): 1–1200 A CSA Certified (File: LR29862): 1–600 A Dc: UL Listed (File: E81895): 1–1200 A 1–30 A: melamine body, bronze caps 35–1200 A: melamine body, copper caps RoHS Compliant Mexico **Material** **Environmental Country of Origin** **JLLS Voltage Ratings** Ac: 600 V Dc: 300 V 1–1200 A Ac: 200 kA rms symmetrical Dc: 20 kA Ac: UL Standard 248-15, Class T UL Listed (File: E81895): 1–1200 A CSA Certified (File: LR29862): 1– 600 A Dc: Littelfuse self-certified 1–30 A: melamine body, copper caps 35–60 A: melamine body, bronze caps 70–1200 A: melamine body, copper caps RoHS Compliant Mexico **Ampere Range Interrupting Ratings Approvals** **Material** **Environmental Country of Origin** ## **Part Numbering System** ## **JLLN xxxx V —** **Series Options** Blank = Standard Non-Plated **Amperage** XP = Premium Silver Plated **Package Quantity** XL = Leaded[†] T = 10 (1 **–** 60 A) XV = Vertical Mount[†] V = 5 (70 **–** 100 A) X = 1 (110 **–** 1200 A) XLS = Solder Lead[†] XLSE = Solder Lead Extended[†] |SERIES AMP PACK<br>SIZE<br>JLLS<br>6<br>T<br>JLLN<br>35<br>T<br>JLLN<br>40<br>T<br>JLLN<br>100<br>V|PLATING<br>SUFFIX<br>MOUNT<br>SUFFIX<br>CATALOG<br>NUMBER<br>ORDERING<br>NUMBER<br>–<br>–<br>JLLS006<br>JLLS006.T<br>–<br>XL†<br>JLLN035L<br>JLLN035.TXL<br>–<br>XLSE†<br>JLLN040LSE<br>JLLN040.TXLSE<br>XP<br>–<br>JLLN100P<br>JLLN100.VXP| |---|---| |†Option is available for JLLN 35–60 amperes only. Premium plating is standard|| ## **Ordering Information** ||||AMPERE RATINGS|AMPERE RATINGS||| |---|---|---|---|---|---|---| ||1|25|70|175|450|1100| ||2|30|80|200|500|1200| ||3|35|90|225|600|| ||6|40|100|250|700|| ||10|45|110|300|800|| ||15|50|125|350|900*|| ||20|60|150|400|1000|| |*JLLS only|*JLLS only|||||| Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **1 of 9** **POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES **==> picture [262 x 58] intentionally omitted <==** ## **Dimensions Inches (mm)** **==> picture [506 x 315] intentionally omitted <==** **----- Start of picture text -----**<br> REFER TO DIMENSIONS INCHES (mm)<br>AMPERES SERIES<br>FIG. NO. A B C D E F G<br>JLLN .875 (22.2) — .281 (7.1) .406 (10.3) — — —<br>1–30 1<br>JLLS 1.500 (38.1) — .281 (7.1) .562 (14.3) — — —<br>1 JLLN .875 (22.2) — .281 (7.1) .562 (14.3) — — —<br>35–60<br>2 JLLS 1.562 (39.7) .812 (20.6) .406 (10.3) .994 (25.2) .062 (1.6) 1.094 (27.8) —<br>JLLN 2.156 (54.8) 1.562 (39.7) .750 (19.1) .812 (20.6) .830 (21.1) .281 (7.1) .125 (3.2)<br>70–100 3<br>JLLS 2.953 (75.0) 2.352 (59.7) .750 (19.1) .828 (21.0) 1.625 (41.3) .281 (7.1) .125 (3.2)<br>JLLN 2.437 (61.9) 1.687 (42.9) .875 (22.2) 1.062 (27.0) .830 (21.1) .343 (8.7) .187 (4.8)<br>110–200 3<br>JLLS 3.250 (82.6) 2.507 (63.7) .875 (22.2) 1.078 (27.4) 1.656 (42.1) .343 (8.7) .187 (4.8)<br>JLLN 2.750 (69.9) 1.843 (46.8) 1.000 (25.4) 1.312 (33.3) .828 (21.0) .406 (10.3) .250 (6.4)<br>225–400 3<br>JLLS 3.625 (92.1) 2.718 (69.1) 1.000 (25.4) 1.593 (40.5) 1.712 (43.5) .406 (10.3) .250 (6.4)<br>JLLN 3.062 (77.8) 2.031 (51.6) 1.250 (31.8) 1.593 (40.5) .875 (22.2) .484 (12.3) .312 (7.9)<br>450–600 3<br>JLLS 3.984 (101.2) 2.953 (75.0) 1.250 (31.8) 2.062 (52.4) 1.765 (44.8) .484 (12.3) .312 (7.9)<br>JLLN 3.375 (85.7) 2.218 (56.4) 1.750 (44.5) 2.062 (52.4) .875 (22.2) .546 (13.9) .375 (9.5)<br>700–800 3<br>JLLS 4.328 (109.9) 3.171 (80.6) 1.750 (44.5) 2.500 (63.5) 1.860 (47.2) .546 (13.9) .375 (9.5)<br>JLLN 4.000 (101.6) 2.531 (64.3) 2.000 (50.8) 2.500 (63.5) 1.033 (26.2) .609 (15.5) .437 (11.1)<br>900–1200 3<br>JLLS 5.271 (133.9) 3.801 (96.5) 2.000 (50.8) 2.625 (66.7) 2.303 (58.5) .609 (15.5) .437 (11.1)<br>**----- End of picture text -----**<br> **==> picture [428 x 81] intentionally omitted <==** **----- Start of picture text -----**<br> C B G<br>D B D F C<br>A C F E D<br>A A<br>Fig. 1 Fig. 2 Fig. 3<br>**----- End of picture text -----**<br> Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **2 of 9** **POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES ## **PCB Mounting Options (JLLN 35–60 A Only)** **==> picture [56 x 17] intentionally omitted <==** **----- Start of picture text -----**<br> Vertical Mount<br>JLLN-XV<br>**----- End of picture text -----**<br> **==> picture [302 x 191] intentionally omitted <==** **----- Start of picture text -----**<br> 12.70±0.25[0.500±0.010] 12.95 +- 0.000.13<br>Leaded [0.195]4.95 [0.510 +- 0.0000.005]<br>JLLN-XL REF<br>34.54[1.360] [1.794]45.57 MAX<br>29.72 44.81 42.93 MIN<br>[1.170] [1.764] [1.690]<br>jf| |<br>1.32 4.19 +- 0.000.13<br>t [0.052]REF [0.165 +- 0.0000.005]<br>PAD LAYOUT<br>Solder<br>JLLN-XLS 559 12, 9578AB<br>**----- End of picture text -----**<br> ## **LSE Terminal Option** **==> picture [457 x 128] intentionally omitted <==** **----- Start of picture text -----**<br> [0.607]15.42 REF 12.95[0.510+- 0.00+- 0.0000.130.005] 4.09 REF [0.165 - 0.000]<br>PAD<br>—— (( [0.161]<br>[0.877]22.28 REF [0.964]24.49 MAX IwSS a [0.165]4.19 REF4.75 REF<br>23.98 REF [0.187]<br>[0.944] 21.84 MIN<br>[0.860] 12.70 REF<br>[0.500]<br>| Ke— eja } pm0 14.22 REF<br>[0.560]<br>1.32 REF 4.19 +- 0.000.13<br>[0.052] [0.165 +- 0.0000.005] DENOTES CRITICAL CHARACTERISTICS.<br>4.09 REF<br>[0.161] PAD LAYOUT CPK DENOTES CPK DIMENSIONS, -MINIMUM CPK VALU<br>DENOTES A CHARACTERISTIC THAT PROVIDES AN<br>**----- End of picture text -----**<br> Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **3 of 9** **POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES **==> picture [262 x 58] intentionally omitted <==** ## **Time Current Curve JLLN (1–10 A)** **==> picture [245 x 281] intentionally omitted <==** **----- Start of picture text -----**<br> 1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>- 1A<br>10090807060 -- 3A2A 10090807060<br>50 - 6A 50<br>40 - 10A 40<br>30 30<br>20 20<br>10987 10987<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.90.80.71 0.90.80.71<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>0.090.080.070.1 0.090.080.070.1<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> ## **Time Current Curve JLLN (35–60 A)** **==> picture [244 x 281] intentionally omitted <==** **----- Start of picture text -----**<br> 1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>- 35A<br>- 40A<br>10090807060 -- 45A50A 10090807060<br>50 - 60A 50<br>40 40<br>30 30<br>20 20<br>10987 10987<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.90.80.71 10.90.80.7<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>0.090.080.070.1 0.10.090.080.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90100 200 300 400 500 600 700 800 9001000 2000 3000 4000 5000 6000 7000 8000 900010000 20000 30000 40000 50000 60000 70000 80000 90000100000<br>**----- End of picture text -----**<br> ## **Time Current Curve JLLN (15–30 A)** **==> picture [244 x 281] intentionally omitted <==** **----- Start of picture text -----**<br> 1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>- 15A<br>- 20A<br>10090807060 -- 25A30A 10090807060<br>50 50<br>40 40<br>30 30<br>20 20<br>10987 10987<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.90.80.71 10.90.80.7<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>0.090.080.070.1 0.10.090.080.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90100 200 300 400 500 600 700 800 9001000 2000 3000 4000 5000 6000 7000 8000 900010000 20000 30000 40000 50000 60000 70000 80000 90000100000<br>**----- End of picture text -----**<br> ## **Time Current Curve JLLN (70–100 A)** **==> picture [244 x 281] intentionally omitted <==** **----- Start of picture text -----**<br> 1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 - 70A 200<br>- 80A<br>100908070 -- 90A100A 100908070<br>60 60<br>50 50<br>40 40<br>30 30<br>20 20<br>10987 10987<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.90.80.71 10.90.80.7<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>0.090.080.070.1 0.10.090.080.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90100 200 300 400 500 600 700 800 9001000 2000 3000 4000 5000 6000 7000 8000 900010000 20000 30000 40000 50000 60000 70000 80000 90000100000<br>**----- End of picture text -----**<br> Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **4 of 9** **POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES **==> picture [262 x 58] intentionally omitted <==** ## **Time Current Curve JLLN (110–200 A)** **==> picture [245 x 281] intentionally omitted <==** **----- Start of picture text -----**<br> 1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>- 110A<br>- 125A<br>10090807060 -- 150A175A 10090807060<br>50 - 200A 50<br>40 40<br>30 30<br>20 20<br>10987 10987<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.90.80.71 10.90.80.7<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>0.090.080.070.1 0.10.090.080.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90100 200 300 400 500 600 700 800 9001000 2000 3000 4000 5000 6000 7000 8000 900010000 20000 30000 40000 50000 60000 70000 80000 90000100000<br>**----- End of picture text -----**<br> ## **Time Current Curve JLLN (225–400 A)** **==> picture [244 x 281] intentionally omitted <==** **----- Start of picture text -----**<br> 1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 - 225A 200<br>- 250A<br>100908070 -- 300A350A 100908070<br>6050 - 400A 6050<br>40 40<br>30 30<br>20 20<br>10987 10987<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.90.80.71 10.90.80.7<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>0.090.080.070.1 0.10.090.080.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90100 200 300 400 500 600 700 800 9001000 2000 3000 4000 5000 6000 7000 8000 900010000 20000 30000 40000 50000 60000 70000 80000 90000100000<br>**----- End of picture text -----**<br> ## **Time Current Curve JLLN (450–1200 A)** **==> picture [244 x 281] intentionally omitted <==** **----- Start of picture text -----**<br> 1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>- 450A<br>- 500A<br>10090807060 -- 600A700A 10090807060<br>50 - 800A 50<br>40 - 1000A 40<br>30 - 1100A 30<br>20 - 1200A 20<br>10987 10987<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.90.80.71 10.90.80.7<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>0.090.080.070.1 0.10.090.080.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90100 200 300 400 500 600 700 800 9001000 2000 3000 4000 5000 6000 7000 8000 900010000 20000 30000 40000 50000 60000 70000 80000 90000100000<br>**----- End of picture text -----**<br> Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **5 of 9** **POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES **==> picture [262 x 58] intentionally omitted <==** ## **Time Current Curve JLLS (1–30 A)** **==> picture [245 x 284] intentionally omitted <==** **----- Start of picture text -----**<br> 1000 900 800 700 900 800 700 1000<br>600 600<br>500 500<br>400 400<br>300 300<br>- 1A<br>200 - 2A 200<br>- 3A<br>100 90 80 70 - 6A - 10A 100 90 80 70<br>60 - 15A 60<br>50 40 - 20A 50 40<br>30 - 25A 30<br>- 30A<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 0.1 0.09 0.08 0.07<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> ## **Time Current Curve JLLS (70–100 A)** **==> picture [244 x 277] intentionally omitted <==** **----- Start of picture text -----**<br> 1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>100908070 100908070<br>6050 - 70A 6050<br>40 - 80A 40<br>30 - 90A 30<br>- 100A<br>20 20<br>10987 10987<br>6 6<br>5 5<br>4 4<br>3 3<br>2 2<br>0.90.80.71 10.90.80.7<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>0.090.080.070.1 0.10.090.080.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90100 200 300 400 500 600 700 800 9001000 2000 3000 4000 5000 6000 7000 8000 900010000 20000 30000 40000 50000 60000 70000 80000 90000100000<br>**----- End of picture text -----**<br> ## **Time Current Curve JLLS (35–60 A)** **==> picture [244 x 602] 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 80 70 90 100 90 80 70<br>60 60<br>50 40 30 - 35A - 40A - 45A 50 40 30<br>20 - 50A 20<br>- 60A<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>0.8 0.7 0.9 1 1 0.9 0.8 0.7<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 0.1 0.09 0.08 0.07<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>Time Current Curve JLLS (110–200 A)<br>1000900800700 1000900800700<br>600 600<br>500 500<br>400 400<br>300 300<br>200 200<br>100908070 100908070<br>60 60<br>50 50<br>40 40<br>30 30<br>20 20<br>109876 - 110A 109876<br>5 - 125A 5<br>4 - 150A 4<br>3 - 175A 3<br>2 - 200A 2<br>0.90.80.71 10.90.80.7<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>0.090.080.070.1 0.10.090.080.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90100 200 300 400 500 600 700 800 9001000 2000 3000 4000 5000 6000 7000 8000 900010000 20000 30000 40000 50000 60000 70000 80000 90000100000<br>**----- End of picture text -----**<br> Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **6 of 9** **POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES **==> picture [262 x 58] intentionally omitted <==** ## **Time Current Curve JLLS (225–400A)** **==> picture [244 x 607] 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 60 - 225A - 250A 100 90 80 70 60<br>50 40 - 300A 50 40<br>30 - 350A 30<br>- 400A<br>20 20<br>10 8 7 9 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 1 0.9 0.8 0.7<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 0.1 0.09 0.08 0.07<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>Time Current Curve JLLS (700–1200A)<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>- 700A<br>- 800A<br>100 90 80 70 60 - 900A - 1000A 100 90 80 70 60<br>50 - 1100A 50<br>40 - 1200A 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 1 0.9 0.8 0.7<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 0.1 0.09 0.08 0.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>**----- End of picture text -----**<br> ## **Time Current Curve JLLS (450–600A)** **==> 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 - 450A 40<br>30 - 500A 30<br>20 - 600A 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 1 0.9 0.8 0.7<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 0.1 0.09 0.08 0.07<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>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>TIME IN SECONDS<br>10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000<br>**----- End of picture text -----**<br> Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **7 of 9** **POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES **==> picture [262 x 58] intentionally omitted <==** ## **Peak Let-Thru Curve and Current-Limiting Effects of JLLN (300 V) Fuses** **==> picture [245 x 281] intentionally omitted <==** **----- Start of picture text -----**<br> 1,000,000<br>1200A -<br>800A -<br>100,000 600A -<br>400A -<br>200A -<br>100A -<br> 60A -<br> 30A -<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 [360 x 218] intentionally omitted <==** **----- Start of picture text -----**<br> SHORT CIRCUIT APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS<br>CURRENT*<br>30 A 60 A 100 A 200 A 400 A 600 A 800 A 1200 A<br> 5,000 700 775 1,100 1,650 3,500 4,000 5,000 5,000<br> 10,000 900 1,000 1,400 2,100 4,400 5,100 6,750 8,250<br> 15,000 1,000 1,100 1,600 2,400 5,000 5,900 7,750 10,000<br> 20,000 1,100 1,250 1,800 2,700 5,500 6,500 8,750 11,000<br> 25,000 1,230 1,300 1,950 2,900 6,000 7,000 9,500 12,000<br> 30,000 1,300 1,475 2,050 3,100 6,400 7,500 10,000 12,500<br> 35,000 1,330 1,575 2,150 3,300 6,750 7,750 10,500 13,500<br> 40,000 1,430 1,600 2,300 3,500 7,000 8,000 11,000 14,000<br> 50,000 1,500 1,750 2,400 3,700 7,500 8,750 12,000 15,000<br> 60,000 1,700 1,900 2,700 4,000 8,000 9,500 12,500 16,000<br> 80,000 1,850 2,100 2,800 4,400 9,000 10,500 14,000 17,500<br> 100,000 2,000 2,250 3,150 4,800 9,750 11,500 15,000 18,500<br> 150,000 2,300 2,600 3,600 5,500 11,000 13,000 17,500 22,000<br> 200,000 2,600 2,800 3,900 6,000 12,000 14,500 19,500 24,000<br>**----- End of picture text -----**<br> *Prospective RMS Symmetrical Amperes Short-Circuit Current _Note: Data Derived from Peak Let-Thru Curves_ Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **8 of 9** **POWR-GARD[®] Fuse** CLASS T – JLLN / JLLS SERIES **==> picture [262 x 58] intentionally omitted <==** ## **Peak Let-Thru Curve and Current-Limiting Effects of JLLS (600 V) Fuses** **==> picture [506 x 280] intentionally omitted <==** **----- Start of picture text -----**<br> 1,000,000 1,000,000<br>100,000 800A - 1200A -<br>600A - 1100A -<br>500A - 1000A -<br>400A - 100,000 900A -<br>200A -<br>100A -<br>60A -<br>30A -<br>10,000<br>10,000<br>1,000<br>100 1,000<br>100 1,000 10,000 100,000 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 [360 x 218] intentionally omitted <==** **----- Start of picture text -----**<br> SHORT CIRCUIT APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS<br>CURRENT*<br>30 A 60 A 100 A 200 A 400 A 600 A 800 A 1200 A<br> 5,000 750 1,225 1,810 2,500 4,600 5,000 5,000 5,000<br> 10,000 945 1,525 2,300 3,150 6,000 8,500 9,400 10,000<br> 15,000 1,050 1,700 2,610 3,600 6,600 9,750 10,500 13,000<br> 20,000 1,150 1,900 2,900 3,950 7,250 10,500 11,000 14,750<br> 25,000 1,300 2,050 3,100 4,250 8,000 11,500 12,500 15,500<br> 30,000 1,375 2,150 3,300 4,500 8,250 12,000 13,750 16,500<br> 35,000 1,400 2,250 3,500 4,750 8,500 13,000 14,000 17,000<br> 40,000 1,425 2,400 3,650 4,950 8,700 14,000 14,750 18,000<br> 50,000 1,600 2,450 3,900 5,350 9,500 14,500 16,000 20,000<br> 60,000 1,650 2,625 4,150 5,650 10,000 15,500 17,300 21,000<br> 80,000 1,825 2,800 4,570 6,250 11,000 17,000 18,750 23,000<br> 100,000 2,000 3,100 4,950 6,700 12,000 18,000 20,000 25,000<br> 150,000 2,250 3,400 5,650 7,700 13,000 21,000 23,000 28,500<br> 200,000 2,450 3,800 6,200 8,450 15,000 23,000 25,000 31,000<br>**----- End of picture text -----**<br> *Prospective RMS Symmetrical Amperes Short-Circuit Current _Note: Data Derived from Peak Let-Thru Curves_ **Disclaimer Notice -** Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at **www.littelfuse.com/product-disclaimer.** Littelfuse.com/jlls, Littelfuse.com/jlln © 2020 Littelfuse, Inc. Rev: 061820 **9 of 9**
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.
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →