Bussmann NOS-4 - Current Limiting Fuse 4A 600V (K5 Class 50kA AIC)

The Bussmann NOS-4 is a low-voltage current-limiting fuse designed for overcurrent protection in industrial electrical systems. It features a 600V AC voltage rating with a 4A current rating, providing reliable circuit protection under demanding conditions. The fuse construction includes a single-barrel design measuring 5 inches in length with a 0.81-inch diameter and weighs 1.153 lb for robust physical durability. This K5 class rated fuse meets multiple industry standards including UL listing, CSA certification, and CE compliance for international applications. Typical applications include motor branch circuit protection, transformer protection, and industrial control panel circuits where high interrupting capacity is required.

Key Features & Specifications

• Type: NOS Series current-limiting fuse, single barrel design
• Voltage Rating: 600V AC
• Current Rating: 4A
• Dimensions: 5 inches length, 0.81 inches diameter
• Standards: UL Listed (File E4273), CSA Certified (Class 1421-01, File 53787), CE, Guide JDDZ, STD 248-9
• Applications: Motor branch circuits, transformer protection, industrial control panels
• Class Rating: K5
• AIC rating: 50kA@600V
• Barrels: 1
• Weight: 1.153 lb
• Family: NOS Series
• Item Subcategory: Low Voltage Fuse
• Country of Origin: Mexico

Product Identification

• UPC: 051712310086
• GTIN: 00051712310086