JLLN Series - UL Class T Fast-Acting Fuse

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Space saving POWR-GARD Class T fuses are the most compact fuses available in ratings above 30 amperes — less than one-third the size of comparable Class R fuses. When rated in accordance with the NEC, Class T fuses provide fast-acting overload and short circuit protection for non-inductive circuits and equipment. Used in inductive circuits, the ampere rating of Class T fuses must be increased to prevent opening on inrush currents. In such instances, Class T fuses may provide only short circuit protection.

For motor and general purpose circuits where space is not critical, we recommend POWR-PRO™ JTD_ID Indicator series, LLNRK/LLSRK series, or FLSR_ID Indicator series.

Applications:
  • Protection of individual electric services and meters.
  • Main switches containing Class T fuses may be used to provide compact protection for meter stacks.
  • Molded case circuit breaker load centers and panelboards have increased interrupting ratings when “series rated” with Littelfuse Class T fuses. Refer to panelboard manufacturers’ literature for UL Listed combination of fuses and panelboards.
  • Series ratings up to 200,000 amperes are available.
Space Saving:
  • Typical three-pole Class T fuse blocks require less than 50% of the panel area required for Class R fuse blocks. Switch enclosures, fuse pullouts, and other equipment using Class T fuses are often correspondingly more compact.
Safety:
  • 200,000 A.I.R. — Reliable interruption of all overcurrents up to 200,000 amperes.
  • Extremely current limiting — Stops damaging short circuit current faster than any mechanical protective device.
  • Fast-Acting — Provides fast-acting overload protection to equipment such as variable speed drives, rectifiers and other equipment containing surge-sensitive components.
Longer Equipment Life:
  • Current limiting design greatly reduces damage to equipment caused by heating and magnetic effects of short circuit currents.
Economical:
  • Extremely current limiting design often permits use of readily available, less costly equipment.
  • Used as input or output fuses for surge-sensitive components, such as variable speed drives and rectifiers, fast-acting Class T JLLN/JLLS fuses may prevent opening of expensive semiconductor fuses protecting individual components.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingOpeningVAC (V)VDC (V)SizeStockSamplesCompare
JLLN001150 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN001P150 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN002250 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN002P250 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN003350 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN003P350 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN006650 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN006P650 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN0101050 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN010P1050 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN0151550 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN015P1550 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN0202050 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN020P2050 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN0252550 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN025P2550 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN0303050 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN030P3050 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN0353520 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN035L3520 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN035LS3520 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN035LSE3520 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN035P3520 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN035V3520 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN0404020 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN040L4020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN040LS4020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN040LSE4020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN040P4020 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN040V4020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN0454520 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN045L4520 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN045LS4520 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN045LSE4520 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN045P4520 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN045V4520 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN0505020 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN050L5020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN050LS5020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN050LSE5020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN050P5020 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN050V5020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN0606020 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN060L6020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN060LS6020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN060LSE6020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN060P6020 kA @ 160 VdcFast-Acting (F)300160Industrial CartridgeCheckOrder
JLLN060V6020 kA @ 160 VdcFast-Acting (F)300160PCB MountCheckOrder
JLLN0707020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN070P7020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN0808020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN080P8020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN0909020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN090P9020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN10010020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN100P10020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN11011020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN110P11020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN12512520 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN125P12520 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN15015020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN150P15020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN17517520 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN175P17520 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN20020020 kA @ 125 VdcFast-Acting (F)300125Knife-BladeCheckOrder
JLLN200P20020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN22522520 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN225P22520 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN25025020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN250P25020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN30030020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN300P30020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN35035020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN350P35020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN40040020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN400P40020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN45045020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN450P45020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN50050020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN500P50020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN60060020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN600P60020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN70070020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN700P70020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN80080020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN800P80020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN1000100020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN1000P100020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN1100110020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN1100P110020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN1200120020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder
JLLN1200P120020 kA @ 125 VdcFast-Acting (F)300125Knife-Blade/Bolt-InCheckOrder

  • Showing 2 items
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
JLLN001.T FUS 300V F/A CLASS T 1A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN002.T FUS 300V F/A CLASS T 2A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN003.T FUS 300V F/A CLASS T 3A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN006.T FUS 300V F/A CLASS T 6A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN010.T FUS 300V F/A CLASS T 10A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN015.T FUS 300V F/A CLASS T 15A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN020.T FUS 300V F/A CLASS T 20A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN025.T FUS 300V F/A CLASS T 25A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN030.T FUS 300V F/A CLASS T 30A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN035.T FUS 300V F/A CLASS T 35A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN035.TXL FUS 160VDC F/A TELECOM 35A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN035.TXLS FUS 160VDC F/A TELECOM 35A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN035.TXLSE FUS 300V F/A CLASS T 35A PCB SPL RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN035.TXLSE REACH181_Declaration_JLLN035.TXLSE No
04/11/2018
Does not Contain
JLLN035.TXV FUS 160VDC F/A TELECOM 35A VERT-MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN040.T FUS 300V F/A CLASS T 40A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN040.TXL FUS 160VDC F/A TELECOM 40A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN040.TXLS FUS 160VDC F/A TELECOM 40A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN040.TXLS No
10/09/2014
IPC_JLLN040.TXLS
JLLN040.TXLSE FUS 300V F/A CLASS T 40A PCB SPL RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN040.TXLSE REACH181_Declaration_JLLN040.TXLSE No
04/11/2018
Does not Contain
JLLN040.TXV FUS 160VDC F/A TELECOM 40A VERT-MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN045.T FUS 300V F/A CLASS T 45A RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN045.T No
JLLN045.TXL FUS 160VDC F/A TELECOM 45A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN045.TXLS FUS 160VDC F/A TELECOM 45A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN045.TXLSE FUS 300V F/A CLASS T 45A PCB SPL RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN045.TXLSE REACH181_Declaration_JLLN045.TXLSE No
04/11/2018
Does not Contain
JLLN045.TXV FUS 160VDC F/A TELECOM 45A VERT-MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN050.T FUS 300V F/A CLASS T 50A RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN050.T No
JLLN050.TXL FUS 160VDC F/A TELECOM 50A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN050.TXLS FUS 160VDC F/A TELECOM 50A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN050.TXLSE FUS 300V F/A CLASS T 50A PCB SPL RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN050.TXLSE REACH181_Declaration_JLLN050.TXLSE No
04/11/2018
Does not Contain
JLLN050.TXV FUS 160VDC F/A TELECOM 50A VERT-MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN050.TXV REACH191_Declaration_JLLN050.TXV No
07/29/2018
Does not Contain
JLLN060.T FUS 300V F/A CLASS T 60A RoHS No 06/30/2006 PbFree No 06/30/2006 REACH191_Declaration_JLLN060.T No
Does not Contain
JLLN060.TXL FUS 160VDC F/A TELECOM 60A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006 No
01/29/2017
JLLN060.TXLS FUS 160VDC F/A TELECOM 60A PCB MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN060.TXLSE FUS 300V F/A CLASS T 60A PCB SPL RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN060.TXLSE REACH181_Declaration_JLLN060.TXLSE No
04/11/2018
Does not Contain
JLLN060.TXV FUS 160VDC F/A TELECOM 60A VERT-MOUNT RoHS No 06/30/2006 PbFree No 06/30/2006
JLLN070.V FUS 300V F/A CLASS T 70A RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN070.V No
JLLN080.V FUS 300V F/A CLASS T 80A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN090.V FUS 300V F/A CLASS T 90A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN100.V FUS 300V F/A CLASS T 100A RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN100.V REACH_SVHC Declaration_JLLN100.V No
Does not Contain
JLLN110.X FUS 300V F/A CLASS T 110A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN110.XXP FUS 300V F/A CLASS T 110A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN110.XXP REACH201_Declaration_JLLN110.XXP No
01/09/2019
Does not Contain
JLLN125.X FUS 300V F/A CLASS T 125A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN125.XXP FUS 300V F/A CLASS T 125A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN125.XXP REACH201_Declaration_JLLN125.XXP No
01/09/2019
Does not Contain
JLLN150.X FUS 300V F/A CLASS T 150A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN150.XXP FUS 300V F/A CLASS T 150A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN150.XXP REACH201_Declaration_JLLN150.XXP No
01/09/2019
Does not Contain
JLLN175.X FUS 300V F/A CLASS T 175A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN175.XXP FUS 300V F/A CLASS T 175A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN175.XXP REACH201_Declaration_JLLN175.XXP No
01/09/2019
Does not Contain
JLLN200.X FUS 300V F/A CLASS T 200A RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN200.X REACH201_Declaration_JLLN200.X No
Does not Contain
JLLN200.XXP FUS 300V F/A CLASS T 200A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN200.XXP REACH201_Declaration_JLLN200.XXP
Does not Contain
JLLN225.X FUS 300V F/A CLASS T 225A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN250.X FUS 300V F/A CLASS T 250A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN250.XXP FUS 300V F/A CLASS T 250A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN250.XXP No
04/10/2018
JLLN300.X FUS 300V F/A CLASS T 300A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN300.XXP FUS 300V F/A CLASS T 300A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN300.XXP REACH191_Declaration_JLLN300.XXP
Does not Contain
JLLN350.X FUS 300V F/A CLASS T 350A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN350.XXP FUS 300V F/A CLASS T 350A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN350.XXP REACH191_Declaration_JLLN350.XXP
Does not Contain
JLLN400.X FUS 300V F/A CLASS T 400A RoHS No 06/30/2006 PbFree No 06/30/2006 No
JLLN400.XXP FUS 300V F/A CLASS T 400A PLTD RoHS No 06/30/2006 PbFree No 06/30/2006 CoC_RoHS10_JLLN400.XXP REACH201_Declaration_JLLN400.XXP
Does not Contain
JLLN450.X FUS 300V F/A CLASS T 450A RoHS No 06/30/2006 PbFree No 06/30/2006 No