S&C Electric 486050R4 - SM-4 Fuse Refill 69kV (Slow-Blow High-Voltage Protection)

S&C Electric 486050R4 is a slow-blow SM-4 fuse refill designed for high-voltage circuit protection in industrial power systems. Rated for 69,000V AC applications, this 486-type fuse features durable construction with precise interruption characteristics for reliable overcurrent protection. The unit weighs 1 lb and complies with industry standards for high-voltage protection devices. Its slow-operating velocity ensures controlled interruption of fault currents, making it suitable for substations, transformers, and utility-grade electrical distribution systems.

Key Features & Specifications

• Type: SM-4 slow-blow fuse refill, 486 series
• Voltage Rating: 69,000V AC
• Current Rating: Customizable per application requirements
• Velocity: Slow-operating characteristic
• Weight: 1 lb
• Standards: Meets utility-grade protection requirements
• Applications: Substations, transformers, industrial power distribution
• Family: SM-4
• Section: Fuse Refills