Carbone-Ferraz 218A4387P41 High Voltage Fuse

The Carbone-Ferraz 218A4387P41 is a high-voltage semiconductor fuse from Ferraz Shawmut (now Mersen) used to protect power-electronic circuits in demanding electrical equipment. It is specified for a maximum operating voltage of 700 V and a current rating of 375 A, placing it among HV fuses designed for semiconductor protection. In distributor catalogs it is listed as 218A4387P41, with cross-references such as A070URC73LI0375 appearing in some listings, which confirms its place in the Ferraz Shawmut/Mersen HV-fuse family. Supplier listings describe this device explicitly as a semiconductor fuse intended for high-voltage protection of electronic components, aligning with Mersen’s portfolio of protective devices for high-voltage applications. Availability across multiple distributors—including Radwell, Mouser, and Parts Super Center—demonstrates broad market presence and replacement compatibility within the 218A4387P41 product line.