Siemens 48FM4R-4G - FM-Class Fuse 4800V/4A (Ferrule Connection, Current-Limiting)

Siemens 48FM4R-4G is a medium-voltage current-limiting fuse designed for industrial circuit protection in high-voltage applications. Rated for 4800V AC systems with a 4A current capacity, this Class R ferrule-connected fuse features a robust single-barrel construction with 12-inch clip centers and a 3-inch diameter. Its 9 lb design meets stringent industry standards for medium-voltage protection, including UL/ANSI compliance for reliable operation in harsh electrical environments. Typical applications include motor control centers, transformers, and switchgear requiring precise overcurrent protection 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: 4A
• Dimensions: 3" diameter, 12" clip center spacing
• Standards: UL/ANSI compliant
• Applications: Industrial switchgear, transformers, motor control
• Class Rating: R
• Connection: Ferrule
• Barrels: 1
• Weight: 9 lb