LLSRK050 - LLSRK Series Fuse for Electrical Protection The Littelfuse LLSRK050 from the LLSRK series POWR-PRO‚Ñ¢ fuses offers reliable overload and short circuit protection for service entrance, main, feeder, and general-purpose branch circuits up to 600 amperes. Designed for use by electrical distributors and switchgear suppliers, these fuses can upgrade existing Class H fuse blocks by replacing lower interrupting rating Class H one-time or renewable fuses, enhancing system safety and durability. Specifications Manufacturer: Littelfuse Manufacturer Part #: LLSRK050 Amperage Rating: 50 Amps Interrupting Capacity: 200,000 RMS symmetrical amps at 600 VAC Fuse Class: RK1, Class R Voltage Rating: 600 VAC Product Weight: 163.9 grams UPC: 079458350777 Features Provides superior overload and short circuit protection Compatible with existing Class H fuse blocks for system upgrades Nonrenewable cartridge fuse with high interrupting rating Suitable for main, feeder, and branch circuit protection Downloads & Links UL JDDZ E81895 CSA 1422-02 029862 LLNRK and LLSRK Series Datasheet