Air-insulated busbar bridge (BM) is designed to operate in AC or DC circuits, voltage 0.4 kV-35 kV, rated current up to 6300 A and frequency 50Hz-60Hz. CMM used for electrical distribution connections devices for auxiliary needs of power plants, distribution KTP devices.

CMM consists of individual modules interconnected and including: metal structure, support (bushing) insulators, tires, busbar compensators (if constructively necessary). Individual modules are made of welded structures sheet metal and powder coated. Individual modules are connected to each other by bolted connections