Littelfuse JLLN-400 - Class T Fuse 400A (200kA@300V Interrupt Rating)

Littelfuse JLLN-400 is a Class T low-voltage fuse designed for high-interrupting capacity circuit protection in industrial power distribution systems. This 400A-rated fuse features a 300V AC voltage rating with a 200kA interrupting capacity at rated voltage, housed in a compact cylindrical design with a 1.31-inch diameter single-barrel construction. The fuse meets industry standards for Class T fuses, providing fast-acting protection against short circuits and overloads in demanding applications. Typical uses include motor branch circuits, transformer protection, and industrial control panels where high fault current interruption is critical.

Key Features & Specifications

• Type: Class T fast-acting low-voltage fuse
• Voltage Rating: 300V AC
• Current Rating: 400A
• Diameter: 1.31 inches (33.27 mm)
• Standards: UL/CSA Class T
• Applications: Industrial power distribution, motor protection, transformer circuits
• AIC rating: 200kA@300V
• Barrels: 1
• Class Rating: T

Product Identification

• UPC: 07945818093
• GTIN: 00079458180930