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Littelfuse LLSRK20 - Class K5 Time-Delay Fuse 600V AC (1-600A Range)

Littelfuse
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Littelfuse LLSRK20 is a Class K5 time-delay fuse designed to provide reliable overcurrent protection for low voltage industrial power distribution systems. It features a 600V AC voltage rating with current ratings available from 1A to 600A, utilizing a time-delay design that allows temporary overloads without nuisance opening while providing fast response to short-circuit conditions. The fuse construction includes a single barrel design with a 0.56-inch diameter and weighs 5.19 lb, featuring robust termination pads for secure connections in industrial environments. It complies with UL/CSA 248-14 standards for Class K5 fuses, ensuring consistent performance and safety in demanding applications. Typical applications include motor branch circuit protection, transformer protection, and feeder circuit protection in industrial facilities, manufacturing plants, and commercial buildings where coordinated protection schemes are required.

Key Features & Specifications
  • Type: Class K5 time-delay fuse with single barrel construction
  • Voltage Rating: 600V AC
  • Current Rating: Available from 1A to 600A
  • Dimensions: 0.56-inch diameter
  • Standards: UL/CSA 248-14
  • Applications: Motor branch circuits, transformer protection, feeder circuits
  • Class Rating: K5
  • Barrels: 1
  • Weight: 5.19 lb
  • Item Subcategory: Low Voltage