●Provide complete single circuit protection to your solar power array. Prevent large currents from damaging the solar panels. ●Fuse can replace. 30A fuse embedded into a waterproof fuse holder, solar connector lead on each end. ●Designed for a wide range of DC applications. Simple plug-and-play. ●Compatible with PV cables with different insulation diameters. ●Purchase this product for extra protection on your system.