Littelfuse LLNRK450 pairs a 450A current rating with 250V AC / 125V DC operation in the LLNRK Series. Key electrical traits include POWR-PRO Class RK1 fuse operation and 200kA AC fault-current capability. Use the Littelfuse datasheet to verify final circuit suitability.
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Part LLNRK450 from the Littelfuse LLNRK Series is specified at 450A and 250V AC / 125V DC. Installation uses cartridge / clip hardware and ferrule / blade (amp-dependent) contacts; the principal interrupting rating is 200kA AC. Published dimensions for this rating/configuration are 263.5mm length; 65.9mm 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.
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