TGM-VB 200A~4000A Transfer Switch Redundancy bypass series 200A~4000A Redundancy bypass switch included a main switch and a bypass switch in a same frame work to provide redundancy supply alternative for loading. The Main switch can be draw out from the frame for repairing or replacing, while the remained bypass switch provides an alternative path for loading. After repairing or replacing, reinstall the main switch back and restore the loading path to main switch.