The Optifuse ACB-12-V-30A is an automotive fuse rated for 30A, 12VDC, with dimensions of 31.8x20.51x18.54mm. It is designed to protect electrical circuits from excessive current and is widely used in cars, trucks, boats, and other automotive equipment. The fuse is made from a durable ceramic material, and it features an easy-to-read marking code that alerts you of any possible breaks in continuity. It is compact and lightweight, and it comes with a Kapton film that makes it easy to install.