The Littelfuse LLNRK Series catalog number LLNRK045 is rated 45A for 250V AC / 125V DC service. The fuse uses POWR-PRO Class RK1 fuse technology with 200kA AC rated interruption on the primary AC rating. Confirm application details against the manufacturer datasheet.
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Littelfuse identifies LLNRK045 as a 45A LLNRK Series fuse for 250V AC / 125V DC applications. For installation, use the specified cartridge / clip arrangement; the Class R device is rated for 200kA AC interruption. Published dimensions for this rating/configuration are 76.2mm length; 20.6mm max body diameter. POWR-PRO Class RK1 construction emphasizes very strong current limitation for equipment-protection upgrades. Typical uses cover general-purpose circuits, Motor, Transformer, Safety Upgrades. Check UL 248-12|Federal Specification WF-1814 and the manufacturer datasheet before final selection.
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