Three phase / Single phase bridge rectifier modules,current 30-500A, 30-200A, 20-350A, 20-300A used for soft startup of motor,industrial auto control,solid state relay ,power supplies and etc. DC, AC applications. We manufacture and export the following different models. 1) MSD, Three phase bridge rectifier modules,current 30-500A, used for soft startup of motor,industrial auto control,solid state relay ,power supplies and etc. DC applications. 2) MQD, Single phase bridge rectifier modules,current 30-200A, used for soft startup of motor,industrial auto control,solid state relay ,power supplies and etc. DC applications. 3) MSA, Three phase bridge rectifier modules,current 20-350A, used for soft startup of motor,industrial auto control,solid state relay ,power supplies and etc. AC applications. 4) MQA, Single phase bridge rectifier modules,current 20-300A, used for soft startup of motor,industrial auto control,solid state relay ,power supplies and etc. AC applications.