LLNRK Series - UL Class RK1 Dual Element Time-Delay Fuse

Series: LLNRK
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

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.

Applications:
  • All general-purpose circuits
  • Motors
  • Transformers
  • Solenoids
  • Fluorescent lighting
  • All system components with high in-rush currents
Features:
  • Extremely current limiting — Reduces damage to circuits and equipment under short-circuit conditions. Stops damaging short circuits faster than any mechanical protective device.
  • 300kA Interrupting Rating — Littelfuse self-certified to 300,000 amperes as standard. Meets future trend towards higher available short circuit currents.
  • 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.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VAC (V)VDC (V)Interrupting RatingOpeningStockSamplesCompare
LLNRK.1000.125012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK.1500.1525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK.2000.225012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK.3000.325012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK.4000.425012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK.5000.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK.6000.625012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK.8000.825012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK001125012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK002225012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK003325012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK004425012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK005525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK006625012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK007725012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK008825012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK009925012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK01.41.425012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK01.61.625012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK01.81.825012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0101025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0121225012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0151525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK02.52.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK02.82.825012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0202025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0252525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK03.23.225012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK03.53.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0303025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0353525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK04.54.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0404025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0454525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK05.65.625012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0505025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0606025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0707025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0808025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK0909025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK1.121.12525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK1.251.2525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK10010025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK11011025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK12512525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK15015025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK17.517.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK17517525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK2.252.2525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK20020025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK22522525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK25025025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK30030025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK35035025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK40040025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK45045025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK50050025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK6.256.2525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder
LLNRK60060025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayCheckOrder

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