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 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 #: FLQ020
UPC: 079458160710
Item #: 729777
Available to Order
$80.65 each
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Littelfuse
Use FLM 250 volt time-delay fuses to protect control circuit transformers, solenoids, and other circuits with high inrush currents. Excellent for supplemental protection of small motors. For motor branch-circuit protection, see Class CC fuses.
MFR: Littelfuse
MFR #: FLM001
UPC: 079458140316
Item #: 1272920
Available to Order
$33.13 each
Availability
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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 #: LLSRK07.5ID
UPC: 079458055221
Item #: 381560
Available to Order
$93.15 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 #: FLSR200ID
UPC: 079458025552
Item #: 184684
Available to Order
$445.50 each
Availability
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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-3PQ
UPC: 079458070095
Item #: 1029535
Available to Order
$68.55 each
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Littelfuse
KLLU series UL Listed, time-delay, Class L are quality fuses in every sense of the word. They were developed to provide a somewhat lower priced alternate to the POWR-PRO KLPC series fuses. KLLU series fuses meet or exceed all UL requirements for Class L fuses. For superior protection and performance, specification-grade POWR-PRO KLPC series fuses are the recommended fuses.
MFR: Littelfuse
MFR #: KLLU1000
UPC: 079458271058
Item #: 871985
Available to Order
$2577.85 each
Availability
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Littelfuse
FLA fuses are 125 volt, pin-indicating time-delay fuses for protection of control circuit transformers, solenoids, and other circuits with high inrush currents. Metal indicating pin: pops-out; when fuse opens. Pin gives visual indication of open fuse. Use FLA fuses in conjunction with special fuseblocks to operate mechanical signal switches or energize alarm circuits. Fuses rated 12 amperes and above have dual-tube construction.
MFR: Littelfuse
MFR #: FLA005
UPC: 079458130553
Item #: 6843
Available to Order
$136.45 each
Availability
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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 #: FLNR100ID
UPC: 079458023886
Item #: 129245
Available to Order
$113.20 each
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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 #: KLNR125
UPC: 079458280845
Item #: 584810
Available to Order
$810.03 each
Availability
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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 #: JTD450ID
UPC: 079458031911
Item #: 325284
Available to Order
$2130.20 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class J 150A Indicating
MFR: Littelfuse
MFR #: JTD150ID
UPC: 079458031836
Item #: 260147
Available to Order
$681.20 each
Availability
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Littelfuse
The Littelfuse Class CC, CD and midget blocks offer generous space savings and enhanced value. DIN-rail mounting and universal mounting holes are available as well as an indication feature on all Class CD fuse blocks.
MFR: Littelfuse
MFR #: L60030M-2PQ
UPC: 079458080056
Item #: 977879
Available to Order
$43.18 each
Availability
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Littelfuse
BLS fuses are 1-3/8" long in contrast to other midget fuses which are 1-1/2". They provide space saving, low-cost, protection to street lighting, metering, control and electronic circuits.
MFR: Littelfuse
MFR #: BLS001
UPC: 079458120318
Item #: 11912
Available to Order
$36.80 each
Availability
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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 #: LLSRK110ID
UPC: 079458060621
Item #: 521990
Available to Order
$640.68 each
Availability
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Littelfuse
Fuse 250V T/D Class Rk1 250A Id
MFR: Littelfuse
MFR #: LLSRK250ID
UPC: 079458060683
Item #: 1146332
Available to Order
$1280.95 each
Availability
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Littelfuse
The KLKD fuse series is fast-acting with a high DC voltage rating. This family of Midget style fuses (10 x 38 mm) is used in solar combiner boxes and in circuits with DC fault currents up to 50,000 amperes. KLKD fuses are available in standard and board-mount configurations. In addition, the KLKD series has been designed to meet both the UL and IEC photovoltaic fuse standards. Littelfuse offers a wide range of ampere ratings to match specific requirements in a variety of applications.
MFR: Littelfuse
MFR #: KLKD.300
UPC: 079458101935
Item #: 299032
Available to Order
$70.73 each
Availability
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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 #: LLNRK450
UPC: 079458330953
Item #: 313888
Available to Order
$990.80 each
Availability
Location Available Qty
Littelfuse
The KLKD fuse series is fast-acting with a high DC voltage rating. This family of Midget style fuses (10 x 38 mm) is used in solar combiner boxes and in circuits with DC fault currents up to 50,000 amperes. KLKD fuses are available in standard and board-mount configurations. In addition, the KLKD series has been designed to meet both the UL and IEC photovoltaic fuse standards. Littelfuse offers a wide range of ampere ratings to match specific requirements in a variety of applications.
MFR: Littelfuse
MFR #: KLKD005
UPC: 079458102024
Item #: 824404
Available to Order
$70.73 each
Availability
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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 #: KLK005
UPC: 079458250558
Item #: 207969
Available to Order
$70.55 each
Availability
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Littelfuse
Available in both Indicating and Non-Indicating versions, the FLNR/FLSR series of fuses set the standard for general purpose fuses. The dual-element design provides advanced short circuit and overload protection. FLSR series fuses provide excellent protection for all types of circuits especially those containing motors.
MFR: Littelfuse
MFR #: FLNR300
UPC: 079458150919
Item #: 232359
Available to Order
$435.95 each
Availability
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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 #: LLNRK125
UPC: 079458330847
Item #: 521982
Available to Order
$342.28 each
Availability
Location Available Qty
Littelfuse
Available in both Indicating and Non-Indicating versions, the FLNR/FLSR series of fuses set the standard for general purpose fuses. The dual-element design provides advanced short circuit and overload protection. FLSR series fuses provide excellent protection for all types of circuits especially those containing motors.
MFR: Littelfuse
MFR #: FLNR500
UPC: 079458150964
Item #: 949456
Available to Order
$680.45 each
Availability
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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 #: KLKR009
UPC: 079458260649
Item #: 962393
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 #: FLSR090
UPC: 079458170818
Item #: 397775
Available to Order
$198.50 each
Availability
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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 #: JLLS060.T
UPC: 079458190786
Item #: 46885
Available to Order
$88.33 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 #: LLNRK030
UPC: 079458330731
Item #: 10004
Available to Order
$37.85 each
Availability
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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 #: KLK.200
UPC: 079458250183
Item #: 171027
Available to Order
$70.55 each
Availability
Location Available Qty
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 #: KLPC600
UPC: 079458295078
Item #: 259313
Available to Order
$2911.53 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 #: LLSRK010ID
UPC: 079458055252
Item #: 75525
Available to Order
$102.48 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 #: JLLS040.T
UPC: 079458190755
Item #: 513600
Available to Order
$106.70 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 #: JTD045ID
UPC: 079458025927
Item #: 730338
Available to Order
$160.28 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-3C
UPC: 079458013603
Item #: 566725
Available to Order
$158.55 each
Availability
Location Available Qty
Littelfuse
Use FLM 250 volt time-delay fuses to protect control circuit transformers, solenoids, and other circuits with high inrush currents. Excellent for supplemental protection of small motors. For motor branch-circuit protection, see Class CC fuses.
MFR: Littelfuse
MFR #: FLM007
UPC: 079458140613
Item #: 1139150
Available to Order
$33.13 each
Availability
Location Available Qty
Littelfuse
Use FLM 250 volt time-delay fuses to protect control circuit transformers, solenoids, and other circuits with high inrush currents. Excellent for supplemental protection of small motors. For motor branch-circuit protection, see Class CC fuses.
MFR: Littelfuse
MFR #: FLM.200
UPC: 079458440188
Item #: 40475
Available to Order
$33.13 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 #: JLLS450
UPC: 079458190953
Item #: 1189549
Available to Order
$1107.35 each
Availability
Location Available Qty
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 #: KLPC400
UPC: 079458295047
Item #: 361067
Available to Order
$2911.53 each
Availability
Location Available Qty
Littelfuse
The UL Listed Class J JLS Series fuses provide space saving, fast-acting overload and short-circuit protection for vital industrial and power conversion applications. Littelfuses JLS Series fuses offer best in class current limitation that prevents equipment damage from overcurrent faults.
MFR: Littelfuse
MFR #: JLS125
UPC: 079458200843
Item #: 792253
Available to Order
$520.85 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 #: LLSRK025ID
UPC: 079458039825
Item #: 521987
Available to Order
$90.28 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 #: KLK.125
UPC: 079458250121
Item #: 605720
Available to Order
$70.55 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 #: LLNRK200
UPC: 079458330885
Item #: 128599
Available to Order
$342.28 each
Availability
Location Available Qty
Littelfuse
The UL Listed Class J JLS Series fuses provide space saving, fast-acting overload and short-circuit protection for vital industrial and power conversion applications. Littelfuses JLS Series fuses offer best in class current limitation that prevents equipment damage from overcurrent faults.
MFR: Littelfuse
MFR #: JLS040
UPC: 079458200751
Item #: 282248
Available to Order
$165.53 each
Availability
Location Available Qty
Littelfuse
FLA fuses are 125 volt, pin-indicating time-delay fuses for protection of control circuit transformers, solenoids, and other circuits with high inrush currents. Metal indicating pin: pops-out; when fuse opens. Pin gives visual indication of open fuse. Use FLA fuses in conjunction with special fuseblocks to operate mechanical signal switches or energize alarm circuits. Fuses rated 12 amperes and above have dual-tube construction.
MFR: Littelfuse
MFR #: FLA.800
UPC: 079458000825
Item #: 913950
Available to Order
$136.45 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class RK5 400A
MFR: Littelfuse
MFR #: FLSR400
UPC: 079458170931
Item #: 2668
Available to Order
$794.05 each
Availability
Location Available Qty
Littelfuse
The UL Listed Class J JLS Series fuses provide space saving, fast-acting overload and short-circuit protection for vital industrial and power conversion applications. Littelfuses JLS Series fuses offer best in class current limitation that prevents equipment damage from overcurrent faults.
MFR: Littelfuse
MFR #: JLS080
UPC: 079458200805
Item #: 962467
Available to Order
$282.63 each
Availability
Location Available Qty
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 #: FLSR04.5ID
UPC: 079458025255
Item #: 1183946
Available to Order
$80.63 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 #: LLNRK004
UPC: 079458330533
Item #: 8737
Available to Order
$50.20 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class J 50A
MFR: Littelfuse
MFR #: JTD050
UPC: 079458202199
Item #: 966027
Available to Order
$149.20 each
Availability
Location Available Qty
Littelfuse
The unique design of Littelfuses compact SLC series Class G fuses provide additional time-delay over competitive products which increases system reliability. Compact Class G fuses were the first fuse series to approach midget fuse dimensions and meet NEC requirements for branch-circuit protection. The unique dimensions of SLC series Class G fuses prevents insertion of lower voltage fuses in Class G fuse holders. The fuses varying length prevents insertion of higher ampere rated fuses in fuse holders designed for lower ampere ratings. Class CC fuses are replacing Class G fuses in many new designs. Class CC fuses superior time delay plus higher voltage and interrupting ratings meet the needs of modern circuits. Littelfuses introduction of POWR-PRO CCMR series fuses, with ratings up to 60 Amperes for providing branch circuit protection, are accelerating this trend.
MFR: Littelfuse
MFR #: SLC015
UPC: 079458420685
Item #: 729638
Available to Order
$33.20 each
Availability
Location Available Qty