S&C Electric 488200R4 - High-Voltage Fuse Refill 115kV (Slow-Blow SM-4 Compatible)

S&C Electric 488200R4 is a high-voltage fuse refill designed for circuit protection in electrical distribution systems. Rated for 115kV applications with slow-blow characteristics, this SM-4 family fuse provides reliable overcurrent protection for industrial power networks. The unit features durable construction with precision-engineered fusible elements housed in a compact 1 lb refill cartridge, meeting stringent industry standards for high-voltage protection. Its slow-operating velocity ensures selective coordination with downstream devices while preventing nuisance tripping. Typical applications include substation equipment, utility feeders, and industrial power distribution systems requiring 115kV protection.

Key Features & Specifications

• Type: 488 series slow-blow fuse refill for SM-4 fuse holders
• Voltage Rating: 115,000V AC
• Current Rating: System-dependent coordination
• Velocity: Slow-operating characteristic
• Weight: 1 lb
• Standards: IEEE C37.40-2003 for high-voltage fuses
• Applications: Substation protection, utility distribution, industrial power systems
• Family: SM-4 compatible
• Section: Fuse refills