Before revision: A 4 A SFE 4 fuse is inch long (the same dimension as an AGA fuse of any rating),a 6 A SFE 6 fuse is inch long,a 7.5 A SFE 7.5 fuse is inch long (same as an AGW fuse of any rating),a 9 A SFE 9 fuse is inch long (same as an AGW fuse of any rating),a 14 A SFE 14 fuse is inch long,a 20 A SFE 20 fuse is inch long (same as an AGC fuse of any rating), anda 30 A SFE 30 fuse is inches long.
After revision: SFE designation Rated current (A) Length inches Notes SFE 4 4 5/8 same length as any AGA rating SFE 6 6 3/4 SFE 7.5 7.5 7/8 same length as any AGW rating SFE 9 9 7/8 same length as any AGW rating SFE 14 14 1 1/16 SFE 20 20 1 1/4 same length as any AGC rating SFE 30