Equip your semi truck to be Ready for the Road Ahead , with the Power Products Mini Blade Fuse Assortment, a key piece that provides enhanced protection against overpowered or blown circuits. Thanks to its ability to melt when a circuit exceeds a certain power level, this replacement component is able to break the flow and prevent damage to other locations. Crafted with an easy to install design that quickly plugs into fuse boxes. FleetPride is your First Click in Heavy Duty .