AC eleOromagnetic contactor as an automatic switch in the control of electrical equipment companies have been widely used. But for various reasons often lead to the emergence of various AC contactor failure or damage. Therefore, there must be targeted to take various measures to do a goodjob AC contactor failure prevention, maintenance and processing, to protect AC contactor to work.%交流接触器作为一种电磁式自动开关在企业电气设备的控制中得到了广泛的应用。但由于各种原因经常导致交流接触器出现各种故障甚至损坏。因此，必须有针对性地采取各种措施，认真做好交流接触器故障的预防、维护和处理工作，保障交流接触器正常工作。
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