FLSR Series - UL Class RK5 Dual-Element Time-Delay Fuses Series - Littelfuse FLSR Fuses Provide Exceptional Overcurrent Protection

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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.

The FLSR series dual-element, time-delay UL Class RK5 fuses are the most widely used fuse class. They offer superior performance and excellent protection for all types of circuits, especially those with motors. Precision manufactured parts ensure an accurate, consistent response to overloads and short-circuits. The FLSR fuses are also available in an indicating version, see the FLSR_ID series.

Features

  • Excellent short-circuit protection
  • Dual-element design
  • Current-limiting

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingOpeningVAC (V)VDC (V)SizeStockSamplesCompare
FLSR.1000.120 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR.1500.1520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR.2000.220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR.2500.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR.3000.320 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR.4000.420 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR.5000.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR.6000.620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR.8000.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR001120 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR01.41.420 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR01.51.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR01.61.620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR01.81.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR1.121.12520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR1.251.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR002220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR02.52.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR02.82.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR2.252.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR003320 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR03.23.220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR03.53.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR004420 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR04.54.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR005520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR05.65.620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR006620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR6.256.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR007720 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR07.57.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR008820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR009920 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0101020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0121220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0151520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR17.517.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0202020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0252520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0303020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0353520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0404020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0454520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0505020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0606020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
FLSR0707020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR0757520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR0808020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR0909020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR10010020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR11011020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR12512520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR15015020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR17517520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR20020020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR22522520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR25025020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR30030020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR35035020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR40040020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR45045020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR50050020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
FLSR60060020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder

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