The Optifuse LPR-03B-14B with Fuse holder is a type of protection device that is designed to protect electrical circuits from excessive current. It features a 20-amp rating, 58-volt DC voltage rating, and can withstand temperatures ranging from -40°C to 85°C. The device comes with a built-in fuse holder along with cable lead connectors, providing secure electrical connections. It is designed to provide reliable protection against short circuits, handling surges, and over-voltages. It is suitable for a wide variety of applications, including power management, renewable energy solutions, telecommunications, and HVAC applications.