The MDrail-E low-voltage distribution and control system is a new generation of high reliability low-voltage system authorized by ABB for production by our company. Suitable for power distribution and lighting distribution in three-phase four wire power systems with AC frequency of 50Hz and voltage of 500V or below in industrial and civil buildings. Suitable for making various motor starter cabinets, including full voltage direct starter cabinets, fully digital control soft starter cabinets, autotransformer step-down starter cabinets, star delta starter cabinets, multi speed motor starter cabinets, etc. There are dozens of primary line scheme numbers or derived scheme numbers for selection and use, with a wide range of applications.