... .Input110/220/380V 5.Output voltage:0-250V,0-430V Three Phase Voltage Regulator 1.Description: the product is special auto transformer ... the maximum value.the provision of indication meter is made for the models TDGC2 0.2,0.25,0.5KVA.all ... researches,and are particularly suited to serve as ancillary facilities for such equipment as various machine tools,transistor curve tracers,projecting ...