ZJSHUYI What is an AC contactor. www.shuyitop.com;#accontactor

The AC contactor uses the main contact to open and close the circuit, and uses the auxiliary contact to execute the control command, so as to complete the power switch and control circuit. Normally, the main contact generally has only normally open contacts, and the auxiliary contact often has two pairs of normally open and normally closed functions of the contact. Next, it is described in detail through its composition, classification, basic parameters, selection parameters, operation and maintenance. It is mainly composed of four parts :(1) electromagnetic system (2) contact system (3) arc extinguishing device (4) insulation shell and accessories The selection parameters of AC contactor include: rated voltage; Rated current; Rated voltage of the coil; Frequency of operation; Working current of auxiliary contacts. Here is also an introduction to the points of attention in the selection of rated current: continuous operation of contactor, according to the selection of 67-75%, for example, 100A AC contactor, can only control the maximum rated current below 67-75A equipment; The intermittent operation shall be counted as 80%. For r repeated short-time work, 116-120% is counted. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #ZJSHUYI #Chinashuyi #shuyitop #accontactor #BypassContactor #Contactor

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