Bussmann NOS-45 - Class RK5 Fuse 45A@600V (50kA Interrupt Rating)

Bussmann NOS-45 is a Class RK5 low-voltage fuse designed for circuit protection in industrial electrical systems. It features a 600V AC rating with a 45A current capacity and 50kA interrupting rating at 600V for reliable overcurrent protection. The fuse measures 5-1/2 inches in length with a 2.59-inch diameter barrel construction, weighing 1.25 lb for robust physical durability. Certified to UL, CSA, and CE standards (File E4273, Class 1421-01), it meets stringent industry requirements for safety and performance. Typical applications include motor control centers, panelboards, and switchgear requiring RK5 time-delay protection.

Key Features & Specifications

• Type: Class RK5 time-delay fuse with single barrel design
• Voltage Rating: 600V AC
• Current Rating: 45A
• Dimensions: 5-1/2" length x 2.59" diameter
• Standards: UL Listed (File E4273), CSA Certified (Class 1421-01), CE, STD 248-9
• Applications: Industrial motor protection, panelboards, switchgear
• AIC rating: 50kA@600V
• Class Rating: RK5
• Weight: 1.25 lb
• Country of Origin: Mexico

Product Identification

• UPC: 05171231045
• GTIN: 00051712310451