Part LLNRK1.12 is a 1.125A member of the Littelfuse LLNRK Series with a 250V AC / 125V DC rating. Its POWR-PRO Class RK1 fuse design is paired with 200kA AC interrupting capability. Use the Littelfuse datasheet to verify final circuit suitability.
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LLNRK1.12 is Littelfuse’s 1.125A configuration in the LLNRK Series, built as a Dual-Element Time-Delay Class RK1 Fuse for 250V AC / 125V DC service. Its cartridge / clip format uses ferrule / blade (amp-dependent) terminals, while the listed primary interrupting capability is 200kA AC. Published dimensions for this rating/configuration are 50.8mm length; 14.3mm max body diameter. POWR-PRO Class RK1 construction emphasizes very strong current limitation for equipment-protection upgrades. The listed application set includes general-purpose circuits, Motor, Transformer, Safety Upgrades; final coordination should follow UL 248-12|Federal Specification WF-1814 and Littelfuse documentation.
