Littelfuse FLNR-300 - Class R Fuse 300A@600V (200kA Interrupt Rating)

Littelfuse FLNR-300 is a low-voltage current-limiting fuse designed for overcurrent protection in industrial electrical systems. It features a 300A current rating and 600V AC voltage rating, with a compact 10.3 x 38 mm cylindrical design constructed with durable ceramic body and tin-plated copper end caps. The fuse meets UL 248-12 and CSA standards for branch circuit protection, making it suitable for motor control centers, panelboards, and service entrance equipment.

Key Features & Specifications

• Type: Current-limiting fuse with ceramic body and tin-plated copper terminals
• Voltage Rating: 600V AC
• Current Rating: 300A
• Dimensions: 10.3 mm diameter x 38 mm length
• Standards: UL 248-12, CSA certified
• Applications: Motor protection, panelboards, service entrance equipment
• Class Rating: Class R
• Interrupting Rating: 200kA
• Mounting: Bolt-on terminal connection
• Operating Temperature: -50°C to +125°C