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Circuit Protection

LNRK350.X

Active
LITTELFUSE

INDUSTRIAL & ELECTRICAL FUSES 350A 250VAC 125VDC CLASS RK1

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Search across all available documentation for this part.

DocumentscUL JDDZ7-E81895 CertificationUL JDDZ E81895+5
llnrk-225-400a-front
Circuit Protection

LNRK350.X

Active
LITTELFUSE

INDUSTRIAL & ELECTRICAL FUSES 350A 250VAC 125VDC CLASS RK1

Deep-Dive with AI

DocumentscUL JDDZ7-E81895 CertificationUL JDDZ E81895+5

Technical Specifications

Parameters and characteristics for this part

SpecificationLNRK350.X
ApplicationsElectrical, Industrial
Approval AgencyUL, CE, CSA, QPL
Breaking Capacity @ Rated Voltage20 kA DC, 200 kA AC
ClassRK1
Current Rating (Amps)350 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

Pricing

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

DistributorPackageQuantity$Updated
DigikeyBox 1$ 171.901m+
N/A 0$ 204.421m+
MouserN/A 1$ 144.071m+
5$ 137.78
10$ 131.79
50$ 127.75
NewarkEach 1$ 148.851m+
5$ 142.49
10$ 127.97
25$ 123.43
50$ 121.62
100$ 118.90

Description

General part information

LLNRK 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.