Robust electrical disconnection for 35kV, 66kV, and 110kV grids with current ratings from 630A to 3150A. Designed for extreme outdoor environments, this heavy-duty isolator switch resists corrosion, ice, and pollution to ensure grid reliability. Manual or motorized operation adapts to substations, transmission lines, and industrial power systems. Fully compliant with IEC 62271 and GB/T standards. Engineered for high-current stability in critical infrastructure.