Littelfuse JTD4ID - Class J Time-Delay Fuse 4A 600V (200kA AIC)

Littelfuse JTD4ID is a Class J time-delay fuse designed for comprehensive circuit protection in industrial power distribution systems. This 600V AC/DC rated fuse features a 4A current rating with 200kA interrupting capacity at 600V, providing reliable protection against short-circuits and overload conditions. The fuse construction includes a single barrel design with 0.81-inch diameter and bolt-in connection for secure installation in power panels and motor control centers. It complies with UL/CSA standards as part of the Powr-Pro family, ensuring compatibility with industrial protection requirements. Typical applications include motor branch circuits, transformers, and feeder circuits where time-delay characteristics prevent nuisance tripping during motor starting currents.

Key Features & Specifications

• Type: Class J time-delay fuse, single barrel construction with bolt-in connection
• Voltage Rating: 600V AC/DC
• Current Rating: 4A
• Dimensions: 0.81-inch diameter
• Standards: UL/CSA certified, Class J rating
• Applications: Industrial power distribution, motor protection, transformer circuits
• AIC rating: 200kA@600V
• Connection: Bolt-In
• Barrels: 1
• Class Rating: J
• Item Subcategory: Low Voltage
• Family: Powr-Pro