Allis Chalmers 48FM9R-4 - Medium Voltage Fuse 4800V 9A (R-Class, Ferrule)

The Allis Chalmers 48FM9R-4 is a medium voltage FM-class current-limiting power fuse designed to provide reliable overcurrent and short-circuit protection in industrial electrical systems. It features a 4800V AC voltage rating and a 9A current rating, ensuring robust performance in high-voltage applications. The fuse is constructed with a single-barrel design featuring ferrule connections, a 3-inch diameter, and a 12-inch clip center spacing for secure mounting in compatible fuse holders. This fuse meets industry standards for R-class performance, delivering specific time-current characteristics for coordinated protection. It is typically applied in industrial power distribution, motor control centers, and transformer protection circuits.

Key Features & Specifications

• Type: FM-class, current-limiting, medium voltage power fuse, single barrel, ferrule connection
• Voltage Rating: 4800V AC
• Current Rating: 9A
• Dimensions: 3" diameter, 12" clip center
• Standards: R-class time-current characteristics
• Applications: Industrial power distribution, motor protection, transformer circuits
• Fuse Class: R
• Connection: Ferrule
• Barrels: 1
• Clip Center: 12 inches
• Weight: 9 lb