The switch consists of a base, cover, and arc extinguishing chamber, all made of arc resistant plastic and featuring a fully plastic structure. The static contact is directly mounted on the base, and the arc extinguishing chamber is easy to disassemble and assemble. Each arc extinguishing chamber has two parts, an inner chamber and an outer chamber. Multiple metal arc extinguishing grids are used to enhance the arc extinguishing ability and improve the contact life.

The NT type fuse link is installed inside the cover, and the cover can rotate in a fan-shaped manner along the support, with a large electrical isolation distance to meet the requirements of the isolation switch. The cover can be easily removed from the base.