... regulation, series of temperature control and speed regulation, light and power control, etc. Application is widespread, TDGC2 - J, TSGC2 - J product ... withstanding voltage2000V/minInsulation resistancesingle-phase>5MΩ three-phase>2MΩNote:Single-phase with digital display (TDGC2 - E series) plus USD9 , three-phase with digital display (TSGC2 ...