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)Interrupting RatingOpeningSizeStockSamplesCompare
FLNR.1000.120 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.1250.12520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.1500.1520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.2000.220 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.2500.2520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.3000.320 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.4000.420 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.5000.520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.6000.620 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR.8000.820 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR001120 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR002220 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR003320 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR004420 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR005520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR006620 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR007720 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR008820 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR009920 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR01.41.420 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR01.51.520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR01.61.6200 kA @ 250 VacSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR01.81.8200 kA @ 250 VacSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0101020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0121220 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0151520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR02.52.520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR02.82.820 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0202020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0252520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR03.23.220 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR03.53.520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0303020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0353520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR04.54.520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0404020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0454520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR05.65.620 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0505020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0606020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR07.57.520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR0707020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR0757520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR08080200 kA @ 250 VacSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR09090200 kA @ 250 VacSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR1.121.12520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR1.251.2520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR10010020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR11011020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR12512520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR15015020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR17.517.520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR17517520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR2.252.2520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR20020020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR22522520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR25025020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR30030020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR35035020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR40040020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR45045020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR50050020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder
FLNR6.256.2520 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayIndustrial CartridgeCheckOrder
FLNR60060020 kA @ 125 VdcSlo-Blo/Time Lag (T)/Time DelayKnife-BladeCheckOrder

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