Federal Electric vertical type switch fuses are manufactured in AC 22-B class in accordance with IEC 60947-3 standard and CE. FVS are used in electricity distribution for protection against short circuit and overloads. Each pole may open-close independently from other poles and all poles can be opened-closed simultaneously with a single handle if required. It is designed to assemble in vertical position to horizontal busbars. They are suitable for opening and closing load currents under normal circuit conditions and can be closed on short circuit. At open position, they fulfill the separation condition setout for the separators on both terminal sides of each pole. Fuse holders can be easily mounted to and demounted from the case. All the plastic parts used in the manufacture of the load separators are self-extinguishing and halogen-free and do not contain heavy metals.