Littelfuse NLN040 - Low Voltage Fuse 40A 250V (50kA AIC)

Littelfuse NLN040 is a low-voltage current-limiting fuse designed for circuit protection in industrial electrical systems. Rated for 250V AC/DC operation with a 40A current rating, it provides 50kA interrupting capacity at rated voltage for reliable short-circuit protection. The fuse features a compact cylindrical design with a 1.56" diameter and 0.94 lb weight, constructed to UL Standard 248-9 with CSA certification. Its K5 class rating ensures fast-acting protection for motor circuits, transformers, and power distribution equipment in commercial and industrial applications.

Key Features & Specifications

• Type: NLN series current-limiting fuse with single barrel construction
• Voltage Rating: 250V AC/DC
• Current Rating: 40A
• Dimensions: 1.56" diameter
• Standards: UL Standard 248-9, CSA certified
• Applications: Motor circuits, transformers, power distribution
• Class Rating: K5
• AIC rating: 50kA@250V
• Weight: 0.94 lb
• Country of Origin: Mexico

Product Identification

• UPC: 079458000986
• GTIN: 00079458000986