S&C Electric 251300R3 - SM-4 Medium Voltage Fuse 7200V/200A (Class E Slow-Blow)

S&C Electric 251300R3 is a medium-voltage SM-4 fuse designed for circuit protection in industrial power distribution systems. Rated for 7200V AC operation with a 200A current capacity, this Class E fuse features slow blow characteristics for controlled interruption of fault currents. The robust construction includes precision-engineered fusible elements housed in a durable 2 lb enclosure, meeting IEEE C37.40 standards for medium-voltage protection. Its UL-recognized design ensures reliable performance in demanding environments, making it suitable for transformer protection, feeder circuits, and motor starter applications where selective coordination is required.

Key Features & Specifications

• Type: SM-4 medium-voltage current-limiting fuse with slow blow characteristic
• Voltage Rating: 7200V AC
• Current Rating: 200A
• Class Rating: E
• Velocity: Slow blow operation
• Weight: 2 lb
• Standards: IEEE C37.40 compliant
• Applications: Transformer protection, feeder circuits, motor starters