... 2)The manufacturer electrical motor magnetic thermal ac contactor series 3)Different type It has function of no voltage protection. It can ... four couple of contacts. CJX8(B)-9-25 adopts closed type arc-distinguishing naturely. CJX8(B)-30-45 adopts steel magnetic ... ,000,000times)10.3 Operating frequency(time/h)AC-3600400300 AC CONTACTOR SERIES: LC1-D, LC1-DN, LC2-D, LC1-F, LC2-F, 3TF, 3TH, 3TB, 3TD, ...