DSTY3333 digital energy meter is used for measuring three phase active energy. It ... voltage indication function. There are signal output port. One meter with one IC card,and it has good anti- ... for data ,easy management for power department. Adopt the meter external installation for load switch ,adopting relay control in the ... Main Technical Data Rated Current(A) 3*1.5(6),3*5(20),3*10(40),3*15(60),3*20 ...