9F aM cylindrical fuses for fuse holders and switch-disconnectors. The cylindrical fuses of operating class aM with delayed release are suitable for protecting motors with high inrush currents. The fuses are available in all common sizes (8.5 x 31.5 mm, 10.3 x 38 mm, 14 x 51 mm and 22 x 58 mm) in currents from 1 A to 125 A.