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

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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 all-new LLSRK_ID series fuse is the most advanced Class RK1 fuse available today providing unparalleled performance and protection to modern circuits. The patented Indicator™ technology provides instant identification of a blown fuse greatly enhancing system up time, while the precision formed short circuit elements virtually eliminate damage to components from unexpected electrical faults. In addition, the all new solid-state overload section has no moving parts, stopping unnecessary fatigue failures commonly found in other spring loaded fuses.

Features:
  • Reduce down-time — The indicating window of the LLSRK_ID immediately identifies the open fuse. If the window is dark, the fuse has opened. It’s that simple. Maintenance personnel can immediately determine that there is an open fuse.
  • Reduce fuse inventory — The superior performance of the LLSRK_ID allows it to be used in a variety of applications, thus decreasing fuse inventory.
  • Reduce nuisance opening — Indicator fuses offer superior time delay and cycling characteristics, which can lengthen fuse life.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingOpeningVAC (V)VDC (V)SizeStockSamplesCompare
LLSRK.100ID0.120 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK.150ID0.1520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK.200ID0.220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK.250ID0.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK.300ID0.320 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK.400ID0.420 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK.500ID0.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK.600ID0.620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK.800ID0.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK001ID120 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK01.4ID1.420 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK01.6ID1.620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK01.8ID1.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK1.12ID1.12520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK1.25ID1.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK002ID220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK02.5ID2.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK02.8ID2.820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK2.25ID2.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK003ID320 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK03.2ID3.220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK03.5ID3.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK004ID420 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK04.5ID4.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK005ID520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300CheckOrder
LLSRK05.6ID5.620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK006ID620 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK6.25ID6.2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK007ID720 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK07.5ID7.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK008ID820 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK009ID920 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK010ID1020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK012ID1220 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK015ID1520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK17.5ID17.520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK020ID2020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK025ID2520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK030ID3020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK035ID3520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK040ID4020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK045ID4520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK050ID5020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK060ID6020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Industrial CartridgeCheckOrder
LLSRK070ID7020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK075ID7520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK080ID8020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK090ID9020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK100ID10020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK110ID11020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK125ID12520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK150ID15020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK175ID17520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK200ID20020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK225ID22520 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK250ID25020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK300ID30020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK350ID35020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK400ID40020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK450ID45020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300CheckOrder
LLSRK500ID50020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder
LLSRK600ID60020 kA @ 300 VdcSlo-Blo/Time Lag (T)/Time Delay600300Knife-BladeCheckOrder

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