Automatic transfer switching equipment is used to control the work performance and accuracy of power lines and automatic switching power supply facility sources in the event of power line parameters decrease or total loss of voltage on the line.
SZR-277 manual SZR-277 outline CAD dxf AVR SZR declaration CE 2024
SZR-278 manual SZR-278 outline CAD dxf AVR SZR declaration CE 2024