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 #: JTD03.5ID
UPC: 079458025767
Item #: 1123239
Available to Order
$101.05 each
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Littelfuse
R-rated fuses provide required short-circuit protection for medium voltage motors, motor controllers and associated circuitry. These components have limited ability to absorb the energy of large short circuit currents. Medium voltage motor controllers contain overload relays which provide both overload protection and locked rotor protection to the motor. The controllers are also intended to interrupt low value short circuits within the capability of the motor controller. This protects the medium voltage R-rated fuse from sustained overcurrents which are less than their minimum interrupting rating.
MFR: Littelfuse
MFR #: 2009R1C5.5W
UPC: 079458041880
Item #: 1184220
Available to Order
$4503.28 each
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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 #: LLSRK.800
UPC: 079458350302
Item #: 636132
Available to Order
$126.33 each
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Littelfuse
Laminated tube BLF fuses are the lowest price midget fuse. They are suitable for control circuit and instrument protection in dry locations.
MFR: Littelfuse
MFR #: BLF020
UPC: 079458100716
Item #: 807021
Available to Order
Phone: 1-855-999-2372 Email Contact Us
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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 #: KLKD001
UPC: 079458101966
Item #: 824402
Available to Order
$70.73 each
Availability
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Littelfuse
Fuse 600V T/D Class J 3A Indicating
MFR: Littelfuse
MFR #: JTD003ID
UPC: 079458025743
Item #: 871980
Available to Order
$96.65 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 #: KLKD015
UPC: 079458102086
Item #: 128449
Available to Order
$70.73 each
Availability
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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 #: FLM.150
UPC: 079458140132
Item #: 249616
Available to Order
$33.13 each
Availability
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Littelfuse
Fuse 600V T/D Class J 30A
MFR: Littelfuse
MFR #: JTD030
UPC: 079458202151
Item #: 231129
In Stock -
$90.13 each
Availability
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Littelfuse
R-rated fuses provide required short-circuit protection for medium voltage motors, motor controllers and associated circuitry. These components have limited ability to absorb the energy of large short circuit currents. Medium voltage motor controllers contain overload relays which provide both overload protection and locked rotor protection to the motor. The controllers are also intended to interrupt low value short circuits within the capability of the motor controller. This protects the medium voltage R-rated fuse from sustained overcurrents which are less than their minimum interrupting rating.
MFR: Littelfuse
MFR #: 1706R1IB5.5
UPC: 079458042757
Item #: 361142
Available to Order
$8787.45 each
Availability
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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 #: FLSR2.25
UPC: 079458170429
Item #: 104356
Available to Order
$72.70 each
Availability
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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 #: FLQ008
UPC: 079458160635
Item #: 729775
Available to Order
$80.65 each
Availability
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Littelfuse
Fuse 600V F/A Class J 50A
MFR: Littelfuse
MFR #: JLS050
UPC: 079458200775
Item #: 962463
In Stock -
$165.53 each
Availability
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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 #: JLS030
UPC: 079458200737
Item #: 833661
Available to Order
$94.63 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 #: KLKR.100
UPC: 079458260113
Item #: 115712
Available to Order
$78.08 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 #: JLLS070
UPC: 079458190793
Item #: 966017
Available to Order
$142.48 each
Availability
Location Available Qty
Littelfuse
Fuse 600V T/D Class J 70A
MFR: Littelfuse
MFR #: JTD070
UPC: 079458202212
Item #: 966029
In Stock -
$317.05 each
Availability
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Littelfuse
Fuse 600V T/D Class J 50A Indicating
MFR: Littelfuse
MFR #: JTD050ID
UPC: 079458025934
Item #: 278925
Available to Order
$160.28 each
Availability
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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 #: LLSRK.100
UPC: 079458350111
Item #: 278340
Available to Order
$134.83 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 #: FLNR110
UPC: 079458150834
Item #: 17473
Available to Order
$248.65 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 #: JTD004
UPC: 079458202052
Item #: 1176036
Available to Order
$91.83 each
Availability
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Littelfuse
For use with Littelfuse FLNR_ID/FLSR_ID, IDSR, LLNRK/LLSRK and KLNR/KLSR series fuses.
MFR: Littelfuse
MFR #: LRU-2662R
UPC: 079458010749
Item #: 1194713
Available to Order
$771.43 each
Availability
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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 #: KLLU800
UPC: 079458271034
Item #: 202429
Available to Order
$2388.63 each
Availability
Location Available Qty
Littelfuse
R-rated fuses provide required short-circuit protection for medium voltage motors, motor controllers and associated circuitry. These components have limited ability to absorb the energy of large short circuit currents. Medium voltage motor controllers contain overload relays which provide both overload protection and locked rotor protection to the motor. The controllers are also intended to interrupt low value short circuits within the capability of the motor controller. This protects the medium voltage R-rated fuse from sustained overcurrents which are less than their minimum interrupting rating.
MFR: Littelfuse
MFR #: 23012R1IB5.5
UPC: 079458042771
Item #: 277469
Available to Order
$8873.58 each
Availability
Location Available Qty
Littelfuse
MIDGET NEUTRAL/DUMMY FUSE
MFR: Littelfuse
MFR #: LNNB001
UPC: 079458024920
Item #: 776282
Available to Order
$55.60 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 #: LLSRK040ID
UPC: 079458039856
Item #: 65978
Available to Order
$155.08 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 #: LLNRK070
UPC: 079458330793
Item #: 74084
Available to Order
$155.53 each
Availability
Location Available Qty
Littelfuse
R-rated fuses provide required short-circuit protection for medium voltage motors, motor controllers and associated circuitry. These components have limited ability to absorb the energy of large short circuit currents. Medium voltage motor controllers contain overload relays which provide both overload protection and locked rotor protection to the motor. The controllers are also intended to interrupt low value short circuits within the capability of the motor controller. This protects the medium voltage R-rated fuse from sustained overcurrents which are less than their minimum interrupting rating.
MFR: Littelfuse
MFR #: 2009R1IB5.5
UPC: 079458042764
Item #: 361143
Available to Order
$8873.58 each
Availability
Location Available Qty
Littelfuse
273S VERY FAST ACTING MICRO FUSE 5A. Developed originally for the U.S. Space Program,MICRO fuse provides reliability in a compact design.The MICRO fuse is available in plugin or radial leadstyles and a complete range of ampere ratings from1/500 to 5A to suit a wide variety of design needs. Features: Military grade available. High breaking capacity. Clear cover option to viewfuse element status. Available from very lowampere of 2mA to 5A Plug-in with short or longleads option.
MFR: Littelfuse
MFR #: 273005
UPC: 079458104745
Item #: 10313
Available to Order
$21.60 each
Availability
Location Available Qty
Littelfuse
Fuse 600V F/A Class J 70A
MFR: Littelfuse
MFR #: JLS070
UPC: 079458200799
Item #: 962466
In Stock -
$269.68 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 #: FLSR002ID
UPC: 079458025170
Item #: 1255232
Available to Order
$76.60 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 #: LLNRK050
UPC: 079458330779
Item #: 73380
Available to Order
$69.40 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 #: KLKD010
UPC: 079458102062
Item #: 824406
Available to Order
$70.73 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 #: LLSRK050ID
UPC: 079458039870
Item #: 26740
Available to Order
$155.08 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 #: JLLN225
UPC: 079458180893
Item #: 798178
Available to Order
$370.20 each
Availability
Location Available Qty
Littelfuse
POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
MFR: Littelfuse
MFR #: LCC7
UPC: 079458008005
Item #: 199295
Available to Order
$197.93 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 #: FLNR005
UPC: 079458150551
Item #: 396312
Available to Order
$32.05 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-2641R
UPC: 079458010718
Item #: 785479
Available to Order
$516.63 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 #: SLC030
UPC: 079458420739
Item #: 279720
Available to Order
$38.73 each
Availability
Location Available Qty
Littelfuse
Fuse 300V F/A Class T 400A
MFR: Littelfuse
MFR #: JLLN400
UPC: 079458180930
Item #: 128689
Available to Order
$281.10 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 #: 300E2C5.5
UPC: 079458042535
Item #: 1253104
Available to Order
$6814.28 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.300
UPC: 079458250206
Item #: 315413
Available to Order
$70.55 each
Availability
Location Available Qty
Littelfuse
Fuse 250V T/D Midget 30A
MFR: Littelfuse
MFR #: FLM030
UPC: 079458140736
Item #: 881475
Available to Order
$33.13 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 #: FLSR050
UPC: 079458170771
Item #: 824452
Available to Order
$96.08 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 #: NLN500
UPC: 079458360967
Item #: 230227
Available to Order
$585.05 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 #: JTD225ID
UPC: 079458031867
Item #: 730342
Available to Order
$1353.80 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 #: FLSR125
UPC: 079458170849
Item #: 824529
Available to Order
$397.10 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 #: LLSRK225
UPC: 079458350890
Item #: 883222
Available to Order
$1168.80 each
Availability
Location Available Qty