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

Littelfuse FLNR040 is a UL Class RK5 dual-element time-delay fuse designed for circuit protection in low-voltage applications. Rated for 250V AC/DC systems with a 40A current capacity, it features a ferrule rejection design and 200kA interrupting capacity at rated voltage. The fuse measures 0.81" in diameter with a 3" body length, constructed with time-delay characteristics for motor circuit protection. It meets UL 248-12, CSA, and CE standards, making it suitable for industrial control panels, HVAC systems, and power distribution equipment where reliable overload and short-circuit protection are required.

Key Features & Specifications

• Type: UL Class RK5 dual-element time-delay fuse
• Voltage Rating: 250V AC/DC
• Current Rating: 40A
• Dimensions: 0.81" diameter x 3" length
• Standards: UL 248-12 Class RK5, CSA, CE, QPL-W-F-1814
• Applications: Motor circuits, industrial controls, power distribution
• Class Rating: RK5
• Connection: Ferrule rejection
• Barrels: 1
• Velocity: Time-delay (TD)
• AIC rating: 200kA@250V
• Country of Origin: Mexico

Product Identification

• UPC: 07945815075
• GTIN: 00079458150759