S&C Electric 488100R4 - SM-4 Fuse Refill 115kV (Slow-Blow High-Voltage Protection)

S&C Electric 488100R4 is a high-voltage SM-4 fuse refill designed for circuit protection in industrial power distribution systems. Rated for 115 kV applications, this slow-operating fuse features robust construction with precision-engineered elements for reliable overcurrent protection. The 1 lb refill cartridge complies with industry standards for high-voltage protection devices, ensuring safe interruption of fault currents. Its slow-blow characteristic provides coordinated protection for transformers and feeders in utility and heavy industrial environments.

Key Features & Specifications

• Type: SM-4 series high-voltage fuse refill, slow-operating (time-delay) characteristic
• Voltage Rating: 115,000V AC
• Current Rating: Compatible with SM-4 fuse holders
• Velocity: Slow-blow operation
• Standards: Meets utility-grade protection requirements
• Applications: Transformer protection, feeder circuits, industrial power distribution
• Section: Fuse Refills
• Weight: 1 lb
• Family: SM-4