Littelfuse FLSR-040 - RK5 Time-Delay Fuse 40A 600V (200kA AIC)

Littelfuse FLSR-040 is a time-delay fuse designed for comprehensive circuit protection in industrial power distribution systems. It features a 600V AC voltage rating and a 40A current rating, providing reliable overcurrent protection with high interrupting capacity. The fuse construction includes a single-barrel design with ferrule connections, measuring 1.06 inches in diameter and weighing 5.19 lb, built to RK5 class standards for time-delay characteristics. This fuse complies with industry standards for low-voltage applications and offers 200kA interrupting rating at 600V AC. Typical applications include motor branch circuits, transformers, and other industrial equipment requiring coordinated protection against overloads and short circuits.

Key Features & Specifications

• Type: Time-delay fuse, RK5 class, single barrel construction with ferrule connections
• Voltage Rating: 600V AC
• Current Rating: 40A
• Dimensions: 1.06 inches diameter
• Weight: 5.19 lb
• Standards: RK5 class rating
• Applications: Motor circuits, transformers, industrial power distribution
• AIC rating: 200kA@600V AC
• Connection: Ferrule
• Barrels: 1
• Class Rating: RK5
• Diameter: 1.06 inches
• Family: Powr-Gard
• Item Subcategory: Low Voltage

Product Identification

• Manufacturer: Littelfuse
• Type: FLSR