The JN22B-40.5 indoor high-voltage grounding switch is designed for 40.5 kV power systems, ensuring quick and safe electrical isolation. It features a rated voltage of 40.5 kV, a rated current of 12 kA, and a short-circuit making current of 80 kA, ensuring reliable operation under high-voltage conditions. The switch has a power frequency withstand voltage of 42 kV and a lightning impulse withstand voltage of 75 kV, providing excellent insulation performance. With a mechanical life of up to 2000 operations, it is widely used in various power equipment and high-voltage switchgear, offering long-term stable operation.