Littelfuse FLNR-300ID - Class RK1 Fuse 300A (600V AC Low Voltage)

Littelfuse FLNR-300ID is a low-voltage current-limiting fuse from the Powr-Gard family designed to provide reliable overcurrent protection in industrial electrical systems. It features a 300A current rating and is engineered to safely interrupt high fault currents. The fuse is constructed with a durable ceramic body and silver-plated ferrules for secure connections and stable performance. It complies with UL 248-13 standards for Class R fuses, ensuring adherence to industry safety requirements. Typical applications include protection of motor circuits, feeders, and branch circuits in industrial control panels and distribution equipment.

Key Features & Specifications

• Type: Class R, current-limiting, time-delay fuse with ceramic body and silver-plated ferrules
• Voltage Rating: 600V AC
• Current Rating: 300A
• Dimensions: Standard 0000 size (13-1/2" length)
• Standards: UL 248-13, CSA C22.2 No. 248.13
• Applications: Motor circuit protection, feeder protection, branch circuit protection in industrial panels
• Fuse Class: Class RK1
• Interrupting Rating: 200kA RMS symmetrical
• Mounting: Bolt-on/screw terminal connection

Product Identification

• Manufacturer: Littelfuse
• Family: Powr-Gard
• Item Subcategory: Low Voltage