Eaton 449D672A38 - RBT4 Medium Voltage Fuse 14.4kV/80A (29.4kA AIC)

Eaton 449D672A38 is a medium voltage fuse designed for high-voltage circuit protection in industrial power systems. This RBT4-type fuse features a 14.4kV voltage rating and 80A current capacity with a slow-blow characteristic for controlled interruption. Its single-barrel construction with Class E rating provides reliable protection up to 29.4kA interrupting capacity at rated voltage. The fuse meets industry standards for medium-voltage applications and is commonly used in transformer protection, motor circuits, and power distribution equipment.

Key Features & Specifications

• Type: RBT4 medium voltage fuse with slow-blow characteristic
• Voltage Rating: 14,400V AC
• Current Rating: 80A
• Class Rating: E
• AIC Rating: 29.4kA @ 14.4kV
• Barrels: 1
• Velocity: Slow
• Weight: 3 lb
• Applications: Transformer protection, motor circuits, power distribution