Littelfuse JTD-300ID - Medium Voltage Fuse 300A (Class J Time-Delay)

Littelfuse JTD-300ID is a medium voltage fuse designed for providing reliable overcurrent protection in industrial power distribution systems. This Class J time-delay fuse features a 300A current rating and is engineered to safely interrupt high fault currents while offering superior withstand capabilities for motor starting and transformer inrush currents. The fuse construction utilizes a single-barrel design with a 0.81-inch diameter and weighs 5.19 lb, featuring robust materials that ensure mechanical durability and stable performance under demanding conditions. It complies with relevant industry standards for medium voltage applications, including UL/CSA certifications for safety and performance verification. Typical applications include protection of industrial motors, transformers, feeders, and branch circuits in commercial and industrial facilities where coordinated protection schemes are required.

Key Features & Specifications

• Type: Medium Voltage Time-Delay Fuse, Class J, Single Barrel
• Voltage Rating: Medium Voltage
• Current Rating: 300A
• Dimensions: 0.81-inch Diameter
• Standards: UL/CSA Certified
• Applications: Industrial Motors, Transformers, Feeders, Branch Circuits
• Class Rating: J
• Barrels: 1
• Weight: 5.19 lb

Product Identification

• UPC: 079458031881