Class RK1 Fuses
LLSRK Series Fuse
The Littelfuse 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. 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. The LLSRK_ID features the patented Indicator™ technology which 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
KLSR and KLNR Series Fuses
KLSR and KLNR series are en economical design providing the safety of a RK1 fuse. The single element design provides fast-acting overload and short-circuit protection. Use POWR-PRO® LLNRK and LLSRK series RK1, dual-element, time-delay fuses in all new applications requiring the current-limiting ability of UL Class RK1 fuses or in
existing applications where fast-acting RK1 or RK5 fuses have been opening on harmless system surges such as motor starting currents.
Applications: Resistance Heaters, Lighting Circuits, Non-inductive loads.