Littelfuse 0ATO040.V Automotive Fuse Brand: Littelfuse. Part Number: 0ATO040.V. Littelfuse Automotive Fuse, Fast Acting High Speed, Series: ATO, Non-Indicating, 40 A, 32 VDC, 1 kA Interrupt, Blade Terminal, Holder Mounting, 0.74 in Length, 3/4 in Width, 0.2 in Depth, Nylon, Orange. Additional Description: LTFS-ATO040 0ATO040.V FAST-ACTING AUTOMOTIVE BLADE FUSE 40A 40 AMP SIZE. Catalog Description: FAST-ACTING AUTOMOTIVE BLADE FUSE 40A. The ATO® Fuse was designed and patented by Littelfuse in 1976 and set the standard for automotive circuit protection. It features industry standard color coding to indicate amperage rating.287 Series replaces 257 Series...