... -casting frame is alloy aluminum with excellent mechanical strength.3.main technical data:Type:DD282 DD283 DD284Accuracy(class):2Rated voltage(v):220 ... -240Rated current(A):DD282:2(4),2.5(5),3(6),5 ... ),10(20),20(40),30(60),40(80) DD283:2(6),3(9),5(15),10(30),15(45),20(60),30 ...