Eaton 449D672A45 - RBT4 Medium Voltage Fuse 14.4kV/300A (29.4kA AIC)

Eaton 449D672A45 is a medium voltage RBT4 fuse designed for high-voltage circuit protection in industrial power systems. It features a 14.4kV voltage rating and 300A current capacity with a slow-blow characteristic for controlled interruption. The 4-barrel construction with Class E rating provides robust protection up to 29.4kA interrupting capacity at rated voltage. Compliant with industry standards for medium voltage applications, this 3 lb fuse is engineered for switchgear, transformers, and motor control centers in utility and heavy industrial environments.

Key Features & Specifications

• Type: RBT4 medium voltage fuse with slow-blow characteristic
• Voltage Rating: 14400V AC
• Current Rating: 300A
• Dimensions: Standard Class E configuration
• Standards: Industry-compliant medium voltage protection
• Applications: Industrial switchgear, transformers, motor control
• AIC rating: [email protected]
• Class Rating: E
• Barrels: 4
• Velocity: Slow
• Weight: 3 lb