It is made up of framework,isolating switch(fuse used isolating switch)、vacuum switch link、earth switch、operating mechanism etc.
It is made up of framework,isolating switch(fuse used isolating switch)、vacuum switch link、earth switch、operating mechanism etc.
12型负荷开关及组合电器主要由框架、隔离开关（或熔断器充当隔离开关）、真空开关管、接地开关、操作机构等组成。