low voltage device-j9九游会老哥论坛

idm30 series digital meter

idm30 series is an intelligent measurement and control meter used for power distribution system. it can accurately measure, monitor and display power parameters, such as current, voltage, frequency and power factor, as well as active/re…

mpd100a motor protection relay

mpd100a is an intelligent motor controller for 3-phase motors with ac frequency of 50hz, rated voltage of 380-690v and rated current of 1~820a. it combines the two classical functions of motor protection and motor management in a …