Littelfuse FLNR004 - RK5 Time-Delay Fuse 4A 250V (200kA AIC)

Littelfuse FLNR004 is a UL Class RK5 dual-element time-delay fuse designed for circuit protection in industrial applications. It features a 250V AC voltage rating and 4A current rating with a 200kA interrupting capacity at rated voltage. The fuse measures 0.56" in diameter with ferrule rejection connection terminals and weighs 18.8 lb, constructed with time-delay characteristics for overload protection. Certified to UL 248-12 Class RK5, CSA, and QPL-W-F-1814 standards, it meets stringent safety requirements for electrical distribution systems. Typical applications include motor branch circuits, transformers, and power distribution panels where reliable time-delay protection is critical.

Key Features & Specifications

• Type: UL Class RK5 dual-element time-delay fuse
• Voltage Rating: 250V AC
• Current Rating: 4A
• Dimensions: 0.56" diameter x 2" length
• Class Rating: RK5
• Connection: Ferrule rejection
• Barrels: 1
• Velocity: Time-delay (TD)
• Certification: CE, UL 248-12 Class RK5, CSA, QPL-W-F-1814
• AIC rating: 200kA@250V
• Weight: 18.8 lb
• Country of Origin: Mexico

Product Identification

• UPC: 079458150537
• GTIN: 00079458150537