This series of permanent magnet vacuum load switches uses high-quality vacuum load switch interrupters and is equipped with advanced bistable permanent magnet operating mechanisms as the main driving component. The mechanism has fewer operating components, and the secondary circuit control power is designed in a modular way, eliminating the need for mechanical assistance during switchovers. It can feature an intelligent anti-bounce function, with low closing and opening current. In the closed and opened state, the control circuit does not require long-term power, allowing for no-voltage operation, making it safe and reliable while achieving significant energy-saving effects. The switching speed of this series of permanent magnet vacuum switches is fast, with the opening distance and over-travel being 1.5 times that of ordinary vacuum contactors, providing excellent breaking performance, with a short-time withstand current of up to 20 kA. It can be integrated with dry-type current transformers and isolating switches to form a unified pre-paid metering box with an isolating switch. Additionally, a manual switching function can be selected, offering clear cost-effectiveness, making it an ideal matching switch for the new generation of pre-paid metering boxes. The insulation cylinder is made from resin casting, significantly increasing the withstand voltage to over 60 kV, and it has dust resistance and anti-condensation effects, making it more suitable for integrated metering boxes.