DC fuse holders are components designed to securely house and protect fuses in direct current (DC) electrical circuits. They provide a safe and accessible means to insert, remove, or replace fuses, which are crucial for protecting electrical circuits from overcurrent conditions. DC fuse holders are specifically engineered to handle the unique requirements of DC systems, including the potential for arcing, and are used in various applications such as renewable energy systems, automotive, and industrial equipment, ensuring reliable protection and continuity of electrical power.