Siemens 48FM18R-5 - FM-Class Fuse 4800V/18A (Ferrule Connection, 2-Barrel)

Siemens 48FM18R-5 is a medium-voltage current-limiting fuse designed for industrial circuit protection in high-voltage applications. Rated for 4800V AC systems with an 18A current capacity, this Class R ferrule-connected fuse features a robust two-barrel construction with 3-inch diameter and 12-inch clip center spacing. The 20 lb FM-type fuse meets stringent industry standards for medium-voltage protection, making it suitable for transformer feeders, motor circuits, and switchgear applications requiring reliable overcurrent interruption.

Key Features & Specifications

• Type: FM-class current-limiting fuse with ferrule connection
• Voltage Rating: 4800V AC
• Current Rating: 18A
• Dimensions: 3" diameter, 12" clip center
• Class Rating: R
• Construction: 2-barrel design
• Weight: 20 lb
• Applications: Industrial switchgear, transformer protection, motor circuits