ZJSHUYI The working principle of the AC contactor. www.shuyitop.com; #AC...

The working principle of the AC contactor is to use the electromagnetic force to cooperate with the spring force to realize the connection and disconnection of the contacts. The AC contactor has two working states: de-energized state (release state) and electrified state (action state). When the attraction coil is energized, the static iron core generates electromagnetic attraction, the armature is pulled in, and the connecting rod connected to the armature drives the contact to move, so that the normally closed contact breaker is in an electrified state; when the attraction coil is de-energized, the The electromagnetic attraction disappears, the armature is re-opened, the normally open contacts are closed and released under the action of the position spring, all the contacts are reset accordingly, and the contactor is in a power-off state. The AC contactor uses the main contact to control the circuit, and uses the auxiliary contact to conduct the control circuit. The main contacts are generally normally open contacts, while the auxiliary contacts often have two pairs of normally open contacts and normally closed contacts. Small contactors are also often used as intermediate relays in conjunction with the main circuit. The service life of the contactor is very high, the mechanical life is usually millions to 10 million times, and the electrical life is generally hundreds of thousands to millions of times. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters #VFD #contactor #ACcontactor #ZJSHUYI #BypassContactor #frequencyinverter #inverters #vfds #Chinashuyi #shuyitop