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LNRK300.X
Circuit Protection

LNRK300.X

Active
LITTELFUSE

FUSE CLASS RK1 SLOW BLOW ACTING 300A 250V HOLDER CARTRIDGE 120.7 X 59.5 X 53.2MM FIBERGLASS CSA/UL

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Search across all available documentation for this part.

DocumentsLNRK300.X | DatasheetProduct Change Notice EN+5
LNRK300.X
Circuit Protection

LNRK300.X

Active
LITTELFUSE

FUSE CLASS RK1 SLOW BLOW ACTING 300A 250V HOLDER CARTRIDGE 120.7 X 59.5 X 53.2MM FIBERGLASS CSA/UL

Deep-Dive with AI

DocumentsLNRK300.X | DatasheetProduct Change Notice EN+5

Technical Specifications

Parameters and characteristics for this part

SpecificationLNRK300.X
ApplicationsElectrical, Industrial
Approval AgencyUL, CE, CSA, QPL
Breaking Capacity @ Rated Voltage20 kA DC, 200 kA AC
ClassRK1
Current Rating (Amps)300 A
Fuse TypeCartridge
Mounting TypeRequires Holder
Package / CaseCylindrical, Blade Terminals
Response TimeSlow Blow
Size / Dimension [diameter]59.5 mm
Size / Dimension [diameter]2.343 in
Size / Dimension [x]8.626 in
Size / Dimension [x]219.1 mm
Voltage Rating - AC250 VAC
Voltage Rating - DC125 VDC

LLNRK300 Series

FUS 250V T/D CLASS RK1 300A

PartMounting TypeVoltage Rating - ACResponse TimeCurrent Rating (Amps)Approval AgencyVoltage Rating - DCPackage / CaseApplicationsClassSize / Dimension [x]Size / Dimension [diameter]Size / Dimension [x]Size / Dimension [diameter]Fuse TypeBreaking Capacity @ Rated Voltage
LNRK300.X
LITTELFUSE
LNRK300.X
Requires Holder
250 VAC
Slow Blow
300 A
CE
CSA
QPL
UL
125 VDC
Cylindrical
Blade Terminals
Electrical
Industrial
RK1
8.626 in
59.5 mm
219.1 mm
2.343 in
Cartridge
20 kA DC
200 kA AC

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$Updated
DigikeyN/A 0$ 204.421m+
163$ 204.42
NewarkEach 1$ 148.851m+
5$ 142.49
10$ 127.97
25$ 123.43
50$ 121.62
100$ 118.90

Description

General part information

LLNRK300 Series

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.