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ZW68-12/T630-20 outdoor high-voltage AC circuit breaker is an outdoor high-voltage AC switchgear with three-phase AC 50Hz and rated voltage of 12kV, which is mainly used for breaking and closing load current, overload current and short-circuit current in power system. The products completely comply with GB11022, GB1984, DL/T402 and the general technical specifications of 12kV-24kV outdoor pole-mounted circuit breakers of State Grid Corporation of China, and have passed all type tests. It is suitable for protection and control in power distribution systems of substations and industrial and mining enterprises, and is more suitable for rural power grids and places with frequent operation. It can also be used as a sectional switch of a power grid, and can realize distribution network automation after being added with a controller.