Eaton 449D672A45 - Class E Medium Voltage Fuse [email protected] (29.4kA AIC)

Eaton 449D672A45 is a medium voltage current-limiting power fuse designed for high-voltage circuit protection in industrial and utility applications. This Class E rated fuse features a 300A current rating and 14.4kV voltage rating with an interrupting capacity of 29.4kA at 14.4kV for reliable fault protection. The four-barrel slow-blow construction provides controlled interruption characteristics and weighs 3 lb for robust performance. Compliant with industry standards for medium voltage protection, this RBT4 type fuse is engineered for demanding applications including industrial power distribution, utility substations, and large motor protection circuits where high-voltage interruption capability is required.

Key Features & Specifications

• Type: RBT4 medium voltage current-limiting power fuse, four-barrel slow-blow construction
• Voltage Rating: 14.4kV
• Current Rating: 300A
• Dimensions: Standard Class E configuration
• Standards: Industry standards for medium voltage protection
• Applications: Industrial power distribution, utility substations, large motor protection
• AIC rating: [email protected]
• Class Rating: E
• Barrels: 4
• Velocity: Slow
• Weight: 3 lb
• Item Subcategory: Medium Voltage