S&C Electric 474040 - SMD-50 Medium Voltage Fuse 34.5kV/40A (6.7kA AIC)

S&C Electric 474040 is a medium-voltage current-limiting fuse designed for high-voltage circuit protection in industrial power systems. Rated for 34,500V AC with a 40A continuous current capacity, this SMD-50 class fuse features a robust construction capable of interrupting 6.7kA fault currents at rated voltage. The standard-velocity fuse element provides predictable clearing characteristics while meeting stringent industry standards for medium-voltage protection. Its 150 lb weight reflects the durable construction required for utility and industrial applications such as substations, switchgear, and transformer protection.

Key Features & Specifications

• Type: SMD-50 current-limiting medium-voltage fuse
• Voltage Rating: 34,500V AC
• Current Rating: 40A continuous
• AIC Rating: 6.7kA @ 34.5kV
• Class Rating: SMD-50
• Velocity: Standard
• Weight: 150 lb
• Applications: Substations, switchgear, transformer protection