FLNR Series - UL Class RK5 Dual-Element Time-Delay Fuses

Series: FLNR
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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 FLNR series fuses have been the superior UL Class RK5 dual-element time-delay fuses, and are the most widely used class of fuses. FLNR 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.

Applications:

  • Service entrance switches
  • Transformers
  • Switchboard main and feeder switches
  • Motor control center mains and motor branch circuits
  • Individual fused combination motor controllers
  • Distribution panelboards
  • Industrial control panels
  • Protection of fully-rated panelboards and loadcenters
  • All general purpose circuits

Safety:

  • 200,000 A.I.R. - Reliable interruption of all overcurrents up to 200,000 amperes.
  • Faster acting short circuit protection than any non-current limiting mechanical protective device.

Reliability:

  • Accurate and reliable - Automated, precision manufactured and assembled parts ensure accurate, consistent response to overloads and short circuits.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VAC (V)VDC (V)Interrupting RatingOpeningSizeStockSamplesCompare
FLNR.1000.125012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.1250.12525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.1500.1525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.2000.225012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.2500.2525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.3000.325012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.4000.425012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.5000.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.6000.625012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.8000.825012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR001125012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR002225012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR003325012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR004425012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR005525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR006625012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR007725012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR008825012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR009925012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR01.41.425012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR01.51.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR01.61.6250125200 kA @ 250 VacSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR01.81.8250125200 kA @ 250 VacSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0101025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0121225012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0151525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR02.52.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR02.82.825012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0202025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0252525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR03.23.225012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR03.53.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0303025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0353525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR04.54.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0404025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0454525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR05.65.625012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0505025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0606025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR07.57.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0707025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR0757525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR08080250125200 kA @ 250 VacSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR09090250125200 kA @ 250 VacSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR1.121.12525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR1.251.2525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR10010025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR11011025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR12512525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR15015025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR17.517.525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR17517525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR2.252.2525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR20020025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR22522525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR25025025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR30030025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR35035025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR40040025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR45045025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR50050025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR6.256.2525012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR60060025012520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder

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