MRF2913-300 MARINE FUSE CERAMIC

Cross References Brand / Manufacturer Part Number Blue Sea Systems 5191 Bussmann MRBF-300, BK/MRBF-300 CTO USA (Main Product) MRF2913-300 Littelfuse 0581300, 581300, 0581300.X Technical Specifications Feature Details / Value Product Name Marine Rated Battery Fuse (MRBF) / Ceramic Cube Fuse Product Code MRF2913-300 Amperage Rating 300 Amps (300A) Maximum Voltage Rating 58V DC Interrupt Rating 10,000A @ 14V DC / 5,000A @ 32V DC / 2,000A @ 58V DC Fuse Body Material Heavy-Duty Weatherproof Ceramic Housing Terminal Material Tin-Plated Copper Alloy Core Elements Product Group Starters / Alternators / Electrical - Components - Fuses Category Marine Fuses UPC Code 402500980224 Item Gross Weight 0.062 lbs Status Active Applications & Compatibility Guide Category Usage & Universal Compliance Guidelines Recommended Use • Specially engineered for high-current protection in space-constrained marine and heavy automotive electrical environments. Ideal for primary main battery terminal branch protection, large power inverters, high-output alternators, heavy-duty windlasses, and bow thruster circuits. Universal Compatibility • Universally compatible with standard single, dual, or triple post MRBF (Marine Rated Battery Fuse) terminal blocks, holders, and mounting bars. • Widely utilized in commercial watercraft, recreational yachts, off-grid solar power battery banks, specialized fleet service trucks, RV master disconnect networks, and heavy machinery auxiliary power modules. Purpose & Function • Acts as a critical high-amperage, fast-acting circuit barrier directly at the battery source to prevent devastating main wiring harness damage or localized thermal failure loops. • Features an ignition-protected design (complying with SAE J1171 standards) that safely isolates internal electrical arcs, making it entirely safe for installation within enclosed marine engine compartments and spaces containing gasoline or diesel fuel environments.