Siemens 48FM6X-4 - FM-Class Medium Voltage Fuse 4800V 6A (Class R Ferrule Connection)

Siemens 48FM6X-4 is a medium-voltage current-limiting fuse designed for high-voltage circuit protection in industrial power systems. Rated for 4800V AC operation with a 6A current rating, this Class R fuse features a robust ferrule connection and single-barrel construction for reliable performance. The fuse measures 3 inches in diameter with a 12-inch clip center spacing, constructed for durability in demanding environments while complying with industry standards for medium-voltage protection. Its design ensures safe interruption of fault currents, making it suitable for transformer protection, motor circuits, and feeder applications in utility and industrial power distribution systems.

Key Features & Specifications

• Type: FM-class current-limiting fuse with ferrule connection
• Voltage Rating: 4800V AC
• Current Rating: 6A
• Dimensions: 3" diameter, 12" clip center spacing
• Standards: Class R (ANSI/IEEE C37.40-47)
• Applications: Transformer/motor protection, industrial feeders
• Connection: Ferrule
• Barrels: 1
• Weight: 9 lb
• Class Rating: R