S&C Electric 252150R3 - SM-4 Medium Voltage Fuse 14.4kV/100A (Class E Slow-Blow)

S&C Electric 252150R3 is a medium-voltage SM-4 fuse designed for circuit protection in industrial power distribution systems. Rated for 14.4kV applications with a 100A current capacity, this Class E fuse features slow-blow velocity characteristics for controlled interruption of fault currents. The 2 lb unit employs robust construction with precision-engineered fusible elements housed in a durable ceramic body, meeting IEEE C37.40-2003 standards for medium-voltage fuses. Typical applications include transformer protection, feeder circuits, and switchgear installations requiring reliable overcurrent protection.

Key Features & Specifications

• Type: SM-4 medium-voltage current-limiting fuse with slow-blow characteristic
• Voltage Rating: 14,400V AC
• Current Rating: 100A
• Class Rating: E
• Velocity: Slow-blow operation
• Weight: 2 lb
• Standards: IEEE C37.40-2003 compliant
• Applications: Transformer protection, feeder circuits, switchgear