Product Compatibility: Designed for M8 stud fuse blocks, this fuse is ideal for both single-terminal and dual-terminal configurations. Ensure seamless integration with your existing system, no additional adapters required. Technical Specifications: These fuses have a maximum voltage rating of 58V and a current rating of 300A, and are equipped with an M8 (5/16-inch) stud size and an M10 (3/8-inch) mounting hole, making them suitable for heavy-duty applications. Safety and Protection Features: These fuses are equipped with ignition protection for gasoline-powered boats, provide thermal detection, trigger automatic tripping when current is overloaded, and have a fast reset function. In addition, their IP66 rating ensures protection against powerful water jets. Precise Operation: Designed for responsiveness and accurate fusing, these fuses play a vital role in circuit protection. They protect your equipment by preventing potential damage to the battery pack and main circuit by fusing under abnormal conditions. Wide Application: Suitable for a variety of environments, including energy vehicles, RVs, cruise ships, and cranes. These fuses are also suitable for DC main power supplies, inverters, winches, and bow thrusters. NOTE: For safety reasons, do not install directly on battery terminals; compatible with terminal fuse blocks PN 5191 or PN 2151. Colour:Photo Color Material:plastic Package Contents: 2 x Waterproof battery fuse Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.