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S&C Electric SMU-20 - Medium Voltage Fuse 34.5kV 150A (Class E Slow-Blow)

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S&C Electric SMU-20 is a medium-voltage fuse designed for high-capacity circuit protection in industrial power distribution systems. This Class E-rated fuse operates at 34,500V AC with a 150A current rating, featuring a slow-blow velocity characteristic for controlled interruption of fault currents. Its single-barrel construction provides reliable performance in demanding environments while maintaining a compact 2 lb form factor. Compliant with industry standards for medium-voltage protection, this fuse is commonly deployed in substations, transformers, and feeder circuits requiring precise overcurrent coordination.

Key Features & Specifications
  • Type: SMU-20 medium-voltage fuse with slow-blow characteristic
  • Voltage Rating: 34,500V AC
  • Current Rating: 150A
  • Class Rating: E
  • Barrels: 1
  • Velocity: Slow
  • Weight: 2 lb
  • Applications: Industrial power distribution, substations, transformer protection
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