Littelfuse JLS-040 - Medium Voltage Current-Limiting Fuse 40A 7.2kV (IEEE C37.41 Compliant)

Littelfuse JLS-040 is a medium-voltage current-limiting fuse designed for circuit protection in industrial power distribution systems. It features a 40A current rating with a 7.2kV voltage rating, providing reliable overcurrent protection in demanding environments. The fuse utilizes a silver-sand construction within a durable ceramic body, ensuring precise interruption characteristics and mechanical robustness. It complies with IEEE C37.41 standards for medium-voltage fuses and is UL listed for safety. Typical applications include motor protection, transformer circuits, and feeder protection in utility and industrial power systems.

Key Features & Specifications

• Type: Current-limiting medium-voltage fuse with silver-sand element
• Voltage Rating: 7.2kV AC
• Current Rating: 40A
• Dimensions: 152mm length x 76mm diameter
• Standards: IEEE C37.41, UL listed
• Applications: Industrial power distribution, motor circuits, transformer protection
• Fuse Class: JLS
• Interrupting Rating: 50kA symmetrical
• Operating Temperature: -40°C to +85°C
• Construction: Ceramic body with silver-sand filler

Product Identification

• UPC: 079458200751
• GTIN: 0007945820075