Littelfuse

Littelfuse

Littelfuse is a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 16,000 global associates. Littelfuse partners with customers to design and deliver innovative, reliable solutions. Serving more than 100,000 end customers, Littelfuse's products are found in various industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse has been driving innovation and technology and building communities for over 95 years.

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Littelfuse
The Littelfuse POWR-PRO JTD_ID Indicator Class J fuse provides visual blown fuse indication and maximum protection in a compact package. The compact Class J package was designed specifically for circuits where space is at a premium. The current limiting time delay JTD_ID offers a patented true dual-element design that is ideal for use in circuits with high inrush currents. Superior performance characteristics of JTD_ID Indicator fuses reduce nuisance fuse opening and the blown fuse indication reduces downtime and increases safety.
MFR: Littelfuse
MFR #: JTD400ID
UPC: 079458031904
Item #: 279427
Available to Order
$1353.80 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class RK5 60A Indicating
MFR: Littelfuse
MFR #: FLSR060ID
UPC: 079458025453
Item #: 75739
Available to Order
$107.73 each
Availability
Location Available Qty
Littelfuse
KLKR series Class CC fuses are fast-acting fuses intended for general-purpose branch circuit protection. Their compact size, fast-acting overload response, and their highly current limiting design make them ideal for use in OEM equipment and control panels because Solid-state devices such as SCRs and other electronic equipment generally require fast-acting protection.
MFR: Littelfuse
MFR #: KLKR.200
UPC: 079458260182
Item #: 3985
Available to Order
$78.08 each
Availability
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Littelfuse
NLN series fuses provide low cost protection for general-purpose feeder and branch circuits when available short circuit currents are less than 50,000 amperes. They replace all Class H fuses which have only a 10,000 ampere interrupting rating. They are suitable for use in many residential and smaller commercial and industrial applications. NLKP series fuses are Canadian Code fuses specifically designed to meet Canadian Electrical Code Type P fuse requirements for residential use. They have a 10,000 ampere interrupting rating. However, to obtain the added benefits of time-delay, current-limitation, and higher interrupting rating, consider the use of POWR-PRO IDSR Indicator fuses for circuits between 250 and 600 volts. The user gets all the benefits of time-delay RK5 fuses plus the added benefits of a n indicating fuse that tells when it has opened. Complete information on these fuses may be found in the POWR-PRO section of this catalog. For circuits up to 250 volts, see FLNR fuses in this section of the catalog.
MFR: Littelfuse
MFR #: NLN125
UPC: 079458360844
Item #: 462770
Available to Order
$198.88 each
Availability
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Littelfuse
Littelfuse fuse reducers allow smaller size fuses to be installed into existing fuse clips to prevent overfusing.
MFR: Littelfuse
MFR #: LRUJ64
UPC: 079458015195
Item #: 137315
Available to Order
$1037.43 each
Availability
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Littelfuse
Littelfuse FLSR_ID Indicator fuses provide visual blown fuse indication at a glance. The patented state-of-the-art solid state design provides maximum reliability and superior performance characteristics in a true dual-element design. The use of Indicator fuses reduces down-time, nuisance opening, increases safety, and can save thousands of dollars in lost production time.
MFR: Littelfuse
MFR #: FLSR350ID
UPC: 079458025590
Item #: 431056
Available to Order
$890.70 each
Availability
Location Available Qty
Littelfuse
ACS 600V CC Power-Safe 30A Indicating 3 Pole
MFR: Littelfuse
MFR #: LPSC003ID
UPC: 079458029055
Item #: 285472
Available to Order
$245.43 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class J 10A Indicating
MFR: Littelfuse
MFR #: JTD010ID
UPC: 079458025958
Item #: 18958
In Stock -
$96.65 each
Availability
Location Available Qty
Littelfuse
The all-new LLSRK_ID series fuse is the most advanced Class RK1 fuse available today providing unparalleled performance and protection to modern circuits. The patented Indicator technology provides instant identification of a blown fuse greatly enhancing system up time, while the precision formed short circuit elements virtually eliminate damage to components from unexpected electrical faults. In addition, the all new solid-state overload section has no moving parts, stopping unnecessary fatigue failures commonly found in other spring loaded fuses.
MFR: Littelfuse
MFR #: LLSRK060ID
UPC: 079458039887
Item #: 27889
Available to Order
$155.08 each
Availability
Location Available Qty
Littelfuse
Space-saving 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.
MFR: Littelfuse
MFR #: JLLS150
UPC: 079458190861
Item #: 1025511
Available to Order
$197.10 each
Availability
Location Available Qty
Littelfuse
Littelfuse LLNRK and LLSRK series POWR-PRO fuses provide superior overload and short circuit protection for service entrance, main, feeder and general-purpose branch circuits up to 600 amperes. LLNRK/LLSRK series fuses can be installed in existing Class H fuse blocks to upgrade systems containing lower interrupting rating Class H one-time or renewable fuses.
MFR: Littelfuse
MFR #: LLNRK015
UPC: 079458330687
Item #: 46104
Available to Order
$37.85 each
Availability
Location Available Qty
Littelfuse
The Littelfuse POWR-PRO JTD_ID Indicator Class J fuse provides visual blown fuse indication and maximum protection in a compact package. The compact Class J package was designed specifically for circuits where space is at a premium. The current limiting time delay JTD_ID offers a patented true dual-element design that is ideal for use in circuits with high inrush currents. Superior performance characteristics of JTD_ID Indicator fuses reduce nuisance fuse opening and the blown fuse indication reduces downtime and increases safety.
MFR: Littelfuse
MFR #: LGR005
UPC: 079458113099
Item #: 131542
Available to Order
$9.25 each
Availability
Location Available Qty
Littelfuse
NLN series fuses provide low cost protection for general-purpose feeder and branch circuits when available short circuit currents are less than 50,000 amperes. They replace all Class H fuses which have only a 10,000 ampere interrupting rating. They are suitable for use in many residential and smaller commercial and industrial applications. NLKP series fuses are Canadian Code fuses specifically designed to meet Canadian Electrical Code Type P fuse requirements for residential use. They have a 10,000 ampere interrupting rating. However, to obtain the added benefits of time-delay, current-limitation, and higher interrupting rating, consider the use of POWR-PRO IDSR Indicator fuses for circuits between 250 and 600 volts. The user gets all the benefits of time-delay RK5 fuses plus the added benefits of a n indicating fuse that tells when it has opened. Complete information on these fuses may be found in the POWR-PRO section of this catalog. For circuits up to 250 volts, see FLNR fuses in this section of the catalog.
MFR: Littelfuse
MFR #: NLN003
UPC: 079458360479
Item #: 1255237
Available to Order
$14.95 each
Availability
Location Available Qty
Littelfuse
The all-new LLSRK_ID series fuse is the most advanced Class RK1 fuse available today providing unparalleled performance and protection to modern circuits. The patented Indicator technology provides instant identification of a blown fuse greatly enhancing system up time, while the precision formed short circuit elements virtually eliminate damage to components from unexpected electrical faults. In addition, the all new solid-state overload section has no moving parts, stopping unnecessary fatigue failures commonly found in other spring loaded fuses.
MFR: Littelfuse
MFR #: LLSRK004ID
UPC: 079458055153
Item #: 14454
Available to Order
$102.48 each
Availability
Location Available Qty
Littelfuse
POWR-BLOK covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors. These clear plastic covers are available for most blocks. To order protective covers, match the number of poles for the block to the cover.
MFR: Littelfuse
MFR #: LPBC3-2
UPC: 079458017915
Item #: 178924
Available to Order
$53.68 each
Availability
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Littelfuse
KLPC series POWR-PRO fuses provide ideal overcurrent protection for circuits from 200 through 6000 amperes. KLPC series POWR-PRO fuses specification-grade construction and performance meet or exceed the most stringent project specifications: 99.9% pure silver links, silver-plated copper end bells, glass-reinforced melamine bodies, O-ring seals between body and end bells, and granular quartz fillers. KLPC series POWR-PRO fuses are the only UL listed Class L fuses that provide a minimum of ten seconds time delay at 500% rated current and are also as current limiting as the fastest Class L fuse on the market. On average, the peak let-through currents of KLPC series fuses are 10% less than any other "time-delay" Class L fuse.
MFR: Littelfuse
MFR #: KLPC500
UPC: 079458295061
Item #: 1014535
Available to Order
$2911.53 each
Availability
Location Available Qty
Littelfuse
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.
MFR: Littelfuse
MFR #: JLLN1200
UPC: 079458181067
Item #: 54498
Available to Order
$1804.73 each
Availability
Location Available Qty
Littelfuse
The Littelfuse POWR-PRO JTD_ID Indicator Class J fuse provides visual blown fuse indication and maximum protection in a compact package. The compact Class J package was designed specifically for circuits where space is at a premium. The current limiting time delay JTD_ID offers a patented true dual-element design that is ideal for use in circuits with high inrush currents. Superior performance characteristics of JTD_ID Indicator fuses reduce nuisance fuse opening and the blown fuse indication reduces downtime and increases safety.
MFR: Littelfuse
MFR #: JTD175
UPC: 079458202281
Item #: 193753
Available to Order
$635.35 each
Availability
Location Available Qty
Littelfuse
Littelfuse offers a selection of E- and R-rated medium voltage fuses for the protection of transformers, potential transformers, feeders, and motor circuits. Single, double, and triple barrel designs are available to cover a wide range of current, voltage, and interrupting ratings. Conventional ferrule type, clip lock, and bolt-in mounting configurations are available for virtually any application. Hermetically sealed fuses for use in hazardous environments are also offered.
MFR: Littelfuse
MFR #: 450E2C5.5
UPC: 079458042566
Item #: 593358
Available to Order
$7691.00 each
Availability
Location Available Qty
Littelfuse
Littelfuse FLNR_ID Indicator fuses provide visual blown fuse indication at a glance. The patented state-of-the-art solid state design provides maximum reliability and superior performance characteristics in a true dual-element design. The use of Indicator fuses reduces down-time, nuisance opening, increases safety, and can save thousands of dollars in lost production time.
MFR: Littelfuse
MFR #: FLNR035ID
UPC: 079458023800
Item #: 871961
Available to Order
$50.80 each
Availability
Location Available Qty
Littelfuse
NLS series fuses provide low cost protection for general-purpose feeder and branch circuits when available short circuit currents are less than 50,000 amperes. They replace all Class H fuses which have only a 10,000 ampere interrupting rating. They are suitable for use in many residential and smaller commercial and industrial applications.
MFR: Littelfuse
MFR #: NLS200
UPC: 079458370881
Item #: 280894
Available to Order
$353.18 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class RK5 200A
MFR: Littelfuse
MFR #: FLSR200
UPC: 079458170887
Item #: 76383
Available to Order
$397.10 each
Availability
Location Available Qty
Littelfuse
Littelfuse DIN series Class CC fuse blocks have integral DIN rail mounting capabilities that allow secure mounting to 35mm "hat" type DIN rails. New releasable mechanism allows installation and removal of block without removing adjacent components on DIN rail. Electrical panel builders and machine builders no longer need to use mounting adapters, saving assembly time and related costs.
MFR: Littelfuse
MFR #: L60030C-1PQ
UPC: 079458070071
Item #: 316025
Available to Order
$33.73 each
Availability
Location Available Qty
Littelfuse
The Littelfuse POWR-PRO JTD_ID Indicator Class J fuse provides visual blown fuse indication and maximum protection in a compact package. The compact Class J package was designed specifically for circuits where space is at a premium. The current limiting time delay JTD_ID offers a patented true dual-element design that is ideal for use in circuits with high inrush currents. Superior performance characteristics of JTD_ID Indicator fuses reduce nuisance fuse opening and the blown fuse indication reduces downtime and increases safety.
MFR: Littelfuse
MFR #: JTD.800ID
UPC: 079458025644
Item #: 165421
Available to Order
$96.65 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class Rk1 300A Id
MFR: Littelfuse
MFR #: LLSRK300ID
UPC: 079458060690
Item #: 1146334
Available to Order
$1280.95 each
Availability
Location Available Qty
Littelfuse
Littelfuse FLNR_ID Indicator fuses provide visual blown fuse indication at a glance. The patented state-of-the-art solid state design provides maximum reliability and superior performance characteristics in a true dual-element design. The use of Indicator fuses reduces down-time, nuisance opening, increases safety, and can save thousands of dollars in lost production time.
MFR: Littelfuse
MFR #: FLNR045ID
UPC: 079458023824
Item #: 871962
Available to Order
$50.80 each
Availability
Location Available Qty
Littelfuse
Fuse 600V F/A Class CC 2A
MFR: Littelfuse
MFR #: KLKR002
UPC: 079458260410
Item #: 167514
Available to Order
$78.08 each
Availability
Location Available Qty
Littelfuse
Littelfuse LLNRK and LLSRK series POWR-PRO fuses provide superior overload and short circuit protection for service entrance, main, feeder and general-purpose branch circuits up to 600 amperes. LLNRK/LLSRK series fuses can be installed in existing Class H fuse blocks to upgrade systems containing lower interrupting rating Class H one-time or renewable fuses.
MFR: Littelfuse
MFR #: LLNRK020
UPC: 079458330717
Item #: 46121
Available to Order
$37.85 each
Availability
Location Available Qty
Littelfuse
KLNR/KLSR series RK1 fast-acting fuses were the earliest type of current-limiting fuse developed. Their single-element, silver link design enables them to provide fast-acting overload and short-circuit protection. When used to protect inductive loads such as motors, solenoids, and transformers, KLNR/KLSR series fuses must be greatly oversized to prevent opening the fuses on harmless inrush currents. In such applications, KLNR/KLSR series fuses may only provide short-circuit protection. We recommend using POWR-PRO LLNRK/LLSRK series RK1, dual-element, time-delay fuses in all new applications requiring the current-limiting ability of UL Class RK1 fast-acting fuses, or in existing applications where fast-acting RK1 or RK5 fuses have been opening on harmless system surges such as motor starting currents.
MFR: Littelfuse
MFR #: KLNR100
UPC: 079458280821
Item #: 610938
Available to Order
$386.48 each
Availability
Location Available Qty
Littelfuse
The all-new LLSRK_ID series fuse is the most advanced Class RK1 fuse available today providing unparalleled performance and protection to modern circuits. The patented Indicator technology provides instant identification of a blown fuse greatly enhancing system up time, while the precision formed short circuit elements virtually eliminate damage to components from unexpected electrical faults. In addition, the all new solid-state overload section has no moving parts, stopping unnecessary fatigue failures commonly found in other spring loaded fuses.
MFR: Littelfuse
MFR #: LLSRK100ID
UPC: 079458060614
Item #: 730351
Available to Order
$320.28 each
Availability
Location Available Qty
Littelfuse
The all-new LLSRK_ID series fuse is the most advanced Class RK1 fuse available today providing unparalleled performance and protection to modern circuits. The patented Indicator technology provides instant identification of a blown fuse greatly enhancing system up time, while the precision formed short circuit elements virtually eliminate damage to components from unexpected electrical faults. In addition, the all new solid-state overload section has no moving parts, stopping unnecessary fatigue failures commonly found in other spring loaded fuses.
MFR: Littelfuse
MFR #: LLSRK175ID
UPC: 079458060652
Item #: 521991
Available to Order
$640.68 each
Availability
Location Available Qty
Littelfuse
ACS 600V Distribution Block 175A 3 Pole Din Mount
MFR: Littelfuse
MFR #: LD2570-3DIN
UPC: 079458876475
Item #: 961806
In Stock -
$246.93 each
Availability
Location Available Qty
Littelfuse
RK1 fuses are extremely current-limiting fuses meaning they greatly reduce or eliminate damage to circuits and equipment under short-circuit conditions. Replacing existing Class H, K and RK5 fuses with RK1 fuses is one of the easiest ways to immediately improve the protection of plant workers and equipment.
MFR: Littelfuse
MFR #: LLSRK200
UPC: 079458350883
Item #: 222299
Available to Order
$584.58 each
Availability
Location Available Qty
Littelfuse
Littelfuse FLSR series fuses have been the superior UL Class RK5 dual-element time-delay fuses, and are the most widely used class of fuses. FLSR series fuses provide excellent protection for all types of circuits especially those containing motors. However, users and specifiers should consider the significant benefits offered by Indicator fuses.
MFR: Littelfuse
MFR #: FLSR035
UPC: 079458170740
Item #: 753928
Available to Order
$96.08 each
Availability
Location Available Qty
Littelfuse
The Littelfuse POWR-PRO JTD_ID Indicator Class J fuse provides visual blown fuse indication and maximum protection in a compact package. The compact Class J package was designed specifically for circuits where space is at a premium. The current limiting time delay JTD_ID offers a patented true dual-element design that is ideal for use in circuits with high inrush currents. Superior performance characteristics of JTD_ID Indicator fuses reduce nuisance fuse opening and the blown fuse indication reduces downtime and increases safety.
MFR: Littelfuse
MFR #: JTD110ID
UPC: 079458031812
Item #: 642412
Available to Order
$681.20 each
Availability
Location Available Qty
Littelfuse
The all-new LLSRK_ID series fuse is the most advanced Class RK1 fuse available today providing unparalleled performance and protection to modern circuits. The patented Indicator technology provides instant identification of a blown fuse greatly enhancing system up time, while the precision formed short circuit elements virtually eliminate damage to components from unexpected electrical faults. In addition, the all new solid-state overload section has no moving parts, stopping unnecessary fatigue failures commonly found in other spring loaded fuses.
MFR: Littelfuse
MFR #: LLSRK350ID
UPC: 079458060706
Item #: 116310
Available to Order
$1280.95 each
Availability
Location Available Qty
Littelfuse
POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover.
MFR: Littelfuse
MFR #: LD2570-1
UPC: 079458014723
Item #: 785786
Available to Order
$76.08 each
Availability
Location Available Qty
Littelfuse
Littelfuse FLNR_ID Indicator fuses provide visual blown fuse indication at a glance. The patented state-of-the-art solid state design provides maximum reliability and superior performance characteristics in a true dual-element design. The use of Indicator fuses reduces down-time, nuisance opening, increases safety, and can save thousands of dollars in lost production time.
MFR: Littelfuse
MFR #: FLNR225ID
UPC: 079458023947
Item #: 871970
Available to Order
$471.10 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class Rk1 125A Id
MFR: Littelfuse
MFR #: LLSRK125ID
UPC: 079458060638
Item #: 106130
Available to Order
$640.68 each
Availability
Location Available Qty
Littelfuse
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.
MFR: Littelfuse
MFR #: KLK015
UPC: 079458250688
Item #: 889825
Available to Order
$70.55 each
Availability
Location Available Qty
Littelfuse
Littelfuse FLNR_ID Indicator fuses provide visual blown fuse indication at a glance. The patented state-of-the-art solid state design provides maximum reliability and superior performance characteristics in a true dual-element design. The use of Indicator fuses reduces down-time, nuisance opening, increases safety, and can save thousands of dollars in lost production time.
MFR: Littelfuse
MFR #: FLNR150ID
UPC: 079458023916
Item #: 871969
Available to Order
$249.00 each
Availability
Location Available Qty
Littelfuse
For use with Littelfuse FLNR_ID/FLSR_ID, IDSR, LLNRK/LLSRK and KLNR/KLSR series fuses.
MFR: Littelfuse
MFR #: LRU-2664R
UPC: 079458010756
Item #: 1037224
Available to Order
$847.00 each
Availability
Location Available Qty
Littelfuse
Littelfuse FLNR_ID Indicator fuses provide visual blown fuse indication at a glance. The patented state-of-the-art solid state design provides maximum reliability and superior performance characteristics in a true dual-element design. The use of Indicator fuses reduces down-time, nuisance opening, increases safety, and can save thousands of dollars in lost production time.
MFR: Littelfuse
MFR #: FLNR080ID
UPC: 079458023862
Item #: 871966
Available to Order
$113.20 each
Availability
Location Available Qty
Littelfuse
The all-new LLSRK_ID series fuse is the most advanced Class RK1 fuse available today providing unparalleled performance and protection to modern circuits. The patented Indicator technology provides instant identification of a blown fuse greatly enhancing system up time, while the precision formed short circuit elements virtually eliminate damage to components from unexpected electrical faults. In addition, the all new solid-state overload section has no moving parts, stopping unnecessary fatigue failures commonly found in other spring loaded fuses.
MFR: Littelfuse
MFR #: LLSRK1.25ID
UPC: 079458055047
Item #: 341651
Available to Order
$117.28 each
Availability
Location Available Qty
Littelfuse
Littelfuse FLSR series fuses have been the superior UL Class RK5 dual-element time-delay fuses, and are the most widely used class of fuses. FLSR series fuses provide excellent protection for all types of circuits especially those containing motors. However, users and specifiers should consider the significant benefits offered by Indicator fuses.
MFR: Littelfuse
MFR #: FLSR070
UPC: 079458170795
Item #: 824454
Available to Order
$198.50 each
Availability
Location Available Qty
Littelfuse
KLKR series Class CC fuses are fast-acting fuses intended for general-purpose branch circuit protection. Their compact size, fast-acting overload response, and their highly current limiting design make them ideal for use in OEM equipment and control panels because Solid-state devices such as SCRs and other electronic equipment generally require fast-acting protection.
MFR: Littelfuse
MFR #: KLKR008
UPC: 079458260632
Item #: 498150
Available to Order
$78.08 each
Availability
Location Available Qty
Littelfuse
Littelfuse FLSR series fuses have been the superior UL Class RK5 dual-element time-delay fuses, and are the most widely used class of fuses. FLSR series fuses provide excellent protection for all types of circuits especially those containing motors. However, users and specifiers should consider the significant benefits offered by Indicator fuses.
MFR: Littelfuse
MFR #: FLSR100
UPC: 079458170825
Item #: 305211
Available to Order
$198.50 each
Availability
Location Available Qty
Littelfuse
The FLQ series 500 V ac time-delay fuses provide excellent supplemental protection of control power transformers, solenoids, and circuits with high inrush currents.
MFR: Littelfuse
MFR #: FLQ025
UPC: 079458160727
Item #: 729778
Available to Order
$80.65 each
Availability
Location Available Qty