Littelfuse JTD-300 - Class J Time-Delay Fuse 300A 600V (UL Listed)

Littelfuse JTD-300 is a time-delay fuse designed for reliable circuit protection in industrial power distribution systems. It features a 300A current rating with 600V AC/DC voltage rating, providing coordinated overload and short-circuit protection. The fuse is constructed with durable materials and measures 4.5 inches in length with standard knife-blade terminals for secure connections. It complies with UL Class J standards and is recognized for use in industrial control panels and motor branch circuits. Typical applications include motor protection, feeder circuits, and industrial machinery where time-delay characteristics prevent nuisance tripping during motor starting.

Key Features & Specifications

• Type: Time-delay fuse with sand-filled construction and knife-blade terminals
• Voltage Rating: 600V AC/DC
• Current Rating: 300A
• Dimensions: 4.5 inches length
• Standards: UL Class J
• Applications: Motor protection, feeder circuits, industrial power distribution
• Fuse Class: J
• Mounting: Standard fuse block/clip
• Weight: 5.19 lb

Product Identification

• Manufacturer: Littelfuse
• Item Subcategory: Fuse Part