JBK1,2,3,4 series control transformer: good performance;low loss;small volume;safe;wide application; ... CCC,CE,appliant JBK1,2,3,4 series control transformer:·good performance;low loss;small volume;safe;wide application ... They are used in various machinary eqiupments, including:normal eletric control power,signal light power,etc.JBK3-6363JBK3-100100JBK3-160160JBK3-250250JBK3 ...