Gn30-12 rotary indoor high voltage isolation switch is a new type of rotary contact switch. Its main structure is to fix two sets of insulators and contacts on the upper and lower planes of the three-phase common base frame. The switch can be opened and closed by rotating the contact.

Gn30-12d switch is based on GN30-12 switch with ground knife, which can meet the needs of different power systems. This product is compact in design, small in space, strong in insulation, easy to install and adjust, its performance conforms to the requirements of GB1985-89 "AC high voltage isolating switch and ground switch", suitable for indoor system with rated voltage of 12kV AC 50Hz and below, and used for splitting and combining circuit under the condition of voltage and no load. It can be used with high voltage switch cabinet or separately.