Littelfuse® POWR-GARD® LLSRK125 Current Limiting Time Delay Fuse, 125 A, 600 V AC/300 V DC, 200/20 kA Interrupt, RK1 Class, Cartridge Body
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 upto 600 A. 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.
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BrandLittelfuse®
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UPC079458350845
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Manufacturer Part NumberLLSRK125
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CountryUSA
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Terminal TypeKnife Blade
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MaterialFiberglass
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ClassRK1
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Rejection/Non-RejectionRejection
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TypeCurrent Limiting
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Mounting TypeHolder
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Voltage Rating600 V AC/300 V DC
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Amperage Rating125 A
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SeriesLLSRK
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Indicating/Non-IndicatingNon-Indicating
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Interrupt Rating200/20 kA
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Body Size1-27/32 in Dia x 9-5/8 in L
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Body TypeCartridge
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ElementDual
- Extremely current limiting - reduces damage to circuits and equipment under short circuit conditions
- Stops damaging short circuits faster than any mechanical protective device
- Reduced costs - current limiting design often permits use of readily available, less costly equipment
- Low resistance design reduces power consumption and utility bills
- Excellent time delay - true dual element construction, with separate non-fatiguing thermally-reversible spring loaded thermal overload element, withstands repeated surges within rated time delay without opening needlessly
- Eliminates needless downtime caused by power surges or equipment demands
- 200 kA at 600 VAC, 20 kA at 300 VDC interrupting rating
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Alternative Part NumberLSRK125.X|8586543
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UNSPSC39121627
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IDEA Index ID8586543
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Package DescriptionEACH
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Standards/ApprovalsUL 248-12|UL File No. E81895|CSA LR29862|Federal Specification WF-1814|PROP65: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer
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Specification Sheet
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Owners/User Manual
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Full Engineering Drawing
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Technical Bulletin
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Littelfuse® POWR-GARD® LLSRK125 Current Limiting Time Delay Fuse, 125 A, 600 V AC/300 V DC, 200/20 kA Interrupt, RK1 Class, Cartridge Body
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 upto 600 A. 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.
Littelfuse® POWR-GARD® LKN005 Fuse Link, 250 VAC, 5 A, For Use With RLN Series Class H Single Element Renewable/Time Delay Fuse
The LKN Series are fuse links designed for Littelfuse RLN series renewable fuses. Traditionally, Class H fuses were used to provide low cost protection of general purpose feeder and branch circuits where available short-circuit currents did not exceed 10,000 amperes. However, generally increased levels of available fault current and the distinct possibility that renewable fuses may be improperly renewed, rendering them unsafe, have all but eliminated the use of these fuses in new applications. In addition, escalating labour costs and increasing automation, which makes downtime very expensive, have greatly reduced or eliminated the cost savings attributed to renewable fuses.
Littelfuse® POWR-GARD® LKN080 Fuse Link, 250 VAC, 80 A, For Use With RLN Series Class H Single Element Renewable/Time Delay Fuse
The LKN Series are fuse links designed for Littelfuse RLN series renewable fuses. Traditionally, Class H fuses were used to provide low cost protection of general purpose feeder and branch circuits where available short-circuit currents did not exceed 10,000 amperes. However, generally increased levels of available fault current and the distinct possibility that renewable fuses may be improperly renewed, rendering them unsafe, have all but eliminated the use of these fuses in new applications. In addition, escalating labour costs and increasing automation, which makes downtime very expensive, have greatly reduced or eliminated the cost savings attributed to renewable fuses.
Littelfuse® POWR-GARD® LKN020 Fuse Link, 250 VAC, 20 A, For Use With RLN Series Class H Single Element Renewable/Time Delay Fuse
The LKN Series are fuse links designed for Littelfuse RLN series renewable fuses. Traditionally, Class H fuses were used to provide low cost protection of general purpose feeder and branch circuits where available short-circuit currents did not exceed 10,000 amperes. However, generally increased levels of available fault current and the distinct possibility that renewable fuses may be improperly renewed, rendering them unsafe, have all but eliminated the use of these fuses in new applications. In addition, escalating labour costs and increasing automation, which makes downtime very expensive, have greatly reduced or eliminated the cost savings attributed to renewable fuses.
Littelfuse® POWR-GARD® LKN100 Fuse Link, 250 VAC, 100 A, For Use With RLN Series Class H Single Element Renewable/Time Delay Fuse
The LKN Series are fuse links designed for Littelfuse RLN series renewable fuses. Traditionally, Class H fuses were used to provide low cost protection of general purpose feeder and branch circuits where available short-circuit currents did not exceed 10,000 amperes. However, generally increased levels of available fault current and the distinct possibility that renewable fuses may be improperly renewed, rendering them unsafe, have all but eliminated the use of these fuses in new applications. In addition, escalating labour costs and increasing automation, which makes downtime very expensive, have greatly reduced or eliminated the cost savings attributed to renewable fuses.
Littelfuse® POWR-GARD® LKN040 Fuse Link, 250 VAC, 40 A, For Use With RLN Series Class H Single Element Renewable/Time Delay Fuse
The LKN Series are fuse links designed for Littelfuse RLN series renewable fuses. Traditionally, Class H fuses were used to provide low cost protection of general purpose feeder and branch circuits where available short-circuit currents did not exceed 10,000 amperes. However, generally increased levels of available fault current and the distinct possibility that renewable fuses may be improperly renewed, rendering them unsafe, have all but eliminated the use of these fuses in new applications. In addition, escalating labour costs and increasing automation, which makes downtime very expensive, have greatly reduced or eliminated the cost savings attributed to renewable fuses.
