Littelfuse FLNR400 - RK5 Time-Delay Fuse 400A 250V
Littelfuse FLNR400 - RK5 Time-Delay Fuse 400A 250V
Littelfuse FLNR400 - RK5 Time-Delay Fuse 400A 250V
Littelfuse FLNR400 - RK5 Time-Delay Fuse 400A 250V

Littelfuse FLNR400 - RK5 Time-Delay Fuse 400A 250V

Littelfuse
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Littelfuse FLNR400 is a UL Class RK5 dual-element time-delay fuse designed for reliable circuit protection in industrial power distribution systems. It features a 400A current rating and a 250V voltage rating, with a high 200kA interrupting capacity at its rated voltage. The fuse is constructed with a single-barrel design, measures 8-5/8 inches in length with a 2.09-inch diameter, and utilizes a rejection blade connection for secure installation. It complies with key industry standards including UL 248-12 Class RK5, CSA, CE, and QPL-W-F-1814. Typical applications include protecting feeders, branch circuits, and motor circuits where time-delay characteristics are required to handle inrush currents.

Key Features & Specifications
  • Type: UL Class RK5 Dual-Element Time-Delay Fuse
  • Voltage Rating: 250V
  • Current Rating: 400A
  • Dimensions: 8-5/8 in length, 2.09 in diameter
  • Standards: CE, UL 248-12 Class RK5, CSA, QPL-W-F-1814
  • Applications: Industrial feeder, branch, and motor circuit protection
  • Class Rating: RK5
  • Connection: Rejection Blade
  • Barrels: 1
  • Velocity: TD - Time Delay
  • AIC rating: 200kA@250V
  • Weight: 1 lb


Product Identification
  • UPC: 079458150933
  • GTIN: 00079458150933