Mod. FM/... Glass body, brass contacts, dimensions 5 x 20, nominal voltage 250V. Breaking power 50 A according with CEI 32.6- IEC 127 - VDE 0820 Mod. FV/S... Ceramic body, brass contacts, dimensions 8,5 x 31,5, nominal voltage 400V. Breaking power >20kA according with CEI 32.1.5 - IEC 269.1.3 - VDE 0636 Mod. FT/R... Ceramic body, brass contacts with fusion indicator, dimensions 9 x 36, nominal voltage 400V. Breaking power >20kA according with CEI 32.1.5 - IEC 269.1.3 Mod. FT/S... Ceramic body, brass contacts, dimensions 10.3 x 38, nominal voltage 500V. Breaking power >120kA according with CEI 32.1.5 - IEC 269.1.3 - VDE 0636 Mod. FT/GO/... Ceramic body, brass contacts with fusion indicator, dimensions 28 x 50, nominal voltage 500V. Breaking power >50kA according with CEI 32.1.5 - IEC 269.1.3 - VDE 0636.