The DC load isolator switch is specially designed for photovoltaic systems, energy storage and industrial DC applications. It has a patented operating structure and a large electrical gap to ensure safe isolation. It uses self-cleaning spherical contact technology to extend service life, and the multi-contact disconnection design improves short-circuit performance (1600A/1000V). The low temperature rise characteristics are suitable for string box environments. It complies with the IEC60947-3 standard (DC-21B category), and the 12kV withstand voltage level ensures high reliability. It is an ideal circuit protection solution for scenarios such as solar power stations and charging piles.