This MAX fuse is rated for 40 amps. MAXI or MAX fuses are fast-acting blade fuses used in cars, trucks, vans, and other vehicles to protect circuits in the wiring harness. You'll usually find these fuses used under the hood of the vehicle but they may be found in the main fuse panel or supplementary panel as well. These fuses are an excellent choice to protect after market accessories such as high-end stereo amplifiers, speakers, and other equipment that requires protection up to 80 amps. Bussmann easyID fuses are the easiest option when it comes time to replace a fuse in your vehicle. Figuring out which fuse needs to be replaced is not fun for anyone but EasyID fuses make it simple. Instead of testing each fuse with a fuse tester, trying to figure out the fuse panel diagram, or pulling out each fuse one-by-one, Bussmann’s easyID fuse technology lights up an LED bulb to let you immediately know which fuse is blown.