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

Bussmann NOS-45 is a low-voltage current-limiting fuse designed for industrial circuit protection applications requiring high interrupting capacity. This RK5 class fuse operates at 600V AC with a 45A current rating and features a 50kA interrupting rating at 600V for reliable fault protection. The single-barrel construction measures 5-1/2 inches in length with a 2.59-inch diameter and weighs 1.25 lb, utilizing current-limiting technology to protect against short circuits and overloads. It complies with multiple industry standards including UL, CSA, and CE certifications for safety and performance verification. Typical applications include motor branch circuits, feeder circuits, and industrial control panels where coordinated protection is essential.

Key Features & Specifications

• Type: Low-voltage current-limiting fuse, RK5 class, single barrel construction
• Voltage Rating: 600V AC
• Current Rating: 45A
• Dimensions: 5-1/2 inches length, 2.59-inch diameter
• Weight: 1.25 lb
• Standards: UL Listed (File E4273), CSA Certified (Class 1421-01, File 53787), CE, Guide JDDZ, STD 248-9
• Applications: Motor branch circuits, feeder circuits, industrial control panels
• AIC rating: 50kA@600V
• Class Rating: RK5
• Barrels: 1
• Country of Origin: Mexico

Product Identification

• UPC: 05171231045
• GTIN: 00051712310451