S&C Electric SMU-20 - Medium Voltage Fuse 34.5kV 175A (Class E Slow-Blow)

S&C Electric SMU-20 is a Class E medium-voltage fuse designed for high-voltage circuit protection in utility and industrial applications. This 34.5kV fuse features a 175A current rating with slow-blow velocity characteristics for controlled interruption of fault currents. Its single-barrel construction provides reliable performance in demanding environments while meeting industry standards for medium-voltage protection systems. The 2 lb unit is engineered for substation equipment, capacitor banks, and transformer protection where precise overcurrent coordination is required.

Key Features & Specifications

• Type: SMU-20 medium-voltage current-limiting fuse with slow-blow operation
• Voltage Rating: 34,500V AC
• Current Rating: 175A
• Class Rating: E
• Barrels: 1
• Velocity: Slow
• Weight: 2 lb
• Applications: Substation equipment, transformer protection, capacitor banks