ZN73-12~24KV Series Indoor Permanent Magnet Vacuum Circuit Breaker

This product is an indoor three-phase AC vacuum circuit breaker operated by a permanent magnet operating mechanism with a rated voltage of 12KV. Rated frequency 50H2, rated current 630A-3150A, short circuit current 16KA-40KA, can be directly used for KYN28 switchgear without any changes to the cabinet. This product integrates vacuum, permanent magnet, intelligent control and other technologies, while maintaining the original advantages of Zn73 indoor vacuum circuit breaker, it has the following advantages: advanced control technology and long life due to the use of high-performance permanent magnet materials and the use of high-grade microcomputer design control, through the company's proprietary control technology, adjust the permanent magnet mechanism coil drive power, in order to obtain the break It optimizes the lifting and closing curves, and makes the parting and closing ends achieve soft landing effectively, greatly reduces the mechanical collision, and greatly improves the life of the mechanism components. It also eliminates the mechanism deformation accumulated by the dynamic and static conductive rod due to the mechanism collision and the change of overstroke and opening distance caused by the operation process. The user does not need to make adjustments. Technical features The performance of the circuit breaker has reached an unprecedented height in the industry, the service life of 20 years, in the operation of normal load current, no maintenance, no adjustment, frequent operation site can highlight the worry performance of the circuit breaker,