Littelfuse FLNR-040 - Time-Delay Fuse 40A 250V (200kA AIC)

Littelfuse FLNR-040 is a time-delay low-voltage fuse designed for circuit protection in industrial and commercial applications. This RK5-class fuse features a 250V AC rating with a 40A current capacity and 200kA interrupting rating at 250V for reliable overcurrent protection. The compact 0.81-inch diameter ferrule-rejection design ensures secure single-barrel connections while preventing incorrect installations. UL-recognized and compliant with industry standards, this Powr-Gard series fuse provides selective coordination in motor control centers, HVAC systems, and power distribution equipment.

Key Features & Specifications

• Type: Time-delay (TD) low-voltage fuse with ferrule rejection
• Voltage Rating: 250V AC
• Current Rating: 40A
• Dimensions: 0.81" diameter
• Standards: UL recognized
• Applications: Motor controls, power distribution, HVAC systems
• Class Rating: RK5
• Connection: Ferrule rejection
• Barrels: 1
• AIC rating: 200kA@250V