Littelfuse FLNR040 - Class RK5 Time-Delay Fuse 40A 250V (200kA AIC)

Littelfuse FLNR040 is a UL Class RK5 dual-element time-delay fuse designed for reliable circuit protection in industrial applications. It features a 40A current rating and 250V voltage rating with a high 200kA interrupting capacity at rated voltage. The fuse construction includes a 0.81-inch diameter ferrule rejection design measuring 3 inches in length and weighing 5.19 lb, ensuring proper installation compatibility. This fuse meets multiple industry standards including UL 248-12 Class RK5, CSA certification, CE marking, and QPL-W-F-1814 requirements. Typical applications include motor circuit protection, transformer protection, and industrial control panel applications where time-delay characteristics prevent nuisance tripping during temporary overload conditions.

Key Features & Specifications

• Type: UL Class RK5 dual-element time-delay fuse with ferrule rejection connection
• Voltage Rating: 250V AC
• Current Rating: 40A
• Dimensions: 3 inches length, 0.81 inches diameter
• Standards: CE, UL 248-12 Class RK5, CSA Certification, QPL-W-F-1814
• Applications: Motor circuit protection, transformer protection, industrial control panels
• Class Rating: RK5
• Connection: Ferrule Rejection
• Barrels: 1
• Velocity: TD - Time Delay
• AIC rating: 200kA@250V
• Weight: 5.19 lb
• Country of Origin: Mexico

Product Identification

• UPC: 07945815075
• GTIN: 00079458150759