CJX7 AC Contactor 1.9-300A 2.AC 50/60Hz 3.up to 660V CJX7 AC Contactor ApplicationCJX7-9~300 AC contactor(hereafter refer to ac contactor)is mainly used in power system with AC 50Hz(or 60Hz), the rated working voltage up to 660V, under the application category of AC-3, when the rated working voltage 380V, the rated operating current to 300A electrical, for the long-distance range making and ...