Littelfuse NLS040 - Current-Limiting Fuse 40A (50kA@600V Interrupt Rating)

Littelfuse NLS040 is a low-voltage current-limiting fuse designed for circuit protection in industrial electrical systems. It features a 600V AC/DC voltage rating and 40A current rating with a 50kA interrupting capacity at 600V for reliable overcurrent protection. The fuse has a compact cylindrical design with a 2.59" diameter and 3.29 lb weight, constructed as a single-barrel K5 class fuse per UL 248-9 and CSA standards. Its current-limiting technology provides fast-acting protection for motor circuits, transformers, and power distribution equipment in commercial and industrial applications.

Key Features & Specifications

• Type: NLS series current-limiting fuse, single barrel construction
• Voltage Rating: 600V AC/DC
• Current Rating: 40A
• Dimensions: 2.59" diameter
• Standards: UL 248-9 listed, CSA certified
• Applications: Motor protection, transformer circuits, power distribution
• Class Rating: K5
• AIC rating: 50kA@600V
• Weight: 3.29 lb
• Country of Origin: Mexico

Product Identification

• UPC: 07945837075
• GTIN: 00079458370751