Fuse bases are engineered to securely mount and connect HV fuses within electrical distribution systems. Available in both indoor and outdoor configurations, these fuse holders cover voltage classes from 3,6 kV to 36 kV and accommodate fuse ratings from 2 A to 315 A. Each phase can be configured to hold a single fuse or a parallel arrangement of two fuses, offering flexibility for higher current applications. Designed in accordance with IEC 62271-102, they deliver the mechanical stability and electrical reliability required for switchgear, substations, and pole-mounted applications.

The fuse bases consist of three main components: a steel sheet frame, supporting insulators, and current-carrying contacts. The frame is electrogalvanized or hot-dip galvanized for corrosion resistance, while all current-carrying parts are made from silver- or nickel-coated electrolytic copper to ensure low contact resistance and long service life. Supporting insulators are available in epoxy resin or porcelain for indoor use, and porcelain or silicone rubber for outdoor applications. Indoor fuse bases can also be equipped with a fuse blown indicator, enabling immediate visual detection of fuse operation.