Since the main purpose of the contactor is to control the motor, the working principle of the contactor controlling the motor is introduced below. When the button is pressed down, the electromagnetic coil in the contactor gets a signal from the button, that is, through the closing action of the normally open contact in the button, the electromagnetic coil passes through the button and the fuse is connected to the power port when the coil is energized. A magnetic field is generated to magnetize the static iron core, which attracts the moving iron core so that it moves towards the static iron core and eventually pulls it together. The moving contact in the contactor contact system is mechanically fixed with the moving iron core. When the moving iron core is attracted downward by the static iron core, the moving contact also moves downwards and closes with the myeloid contact. . such. The motor is switched on via the contactor contact system and the fuse. Start up and start up Once the power supply Lt disappears or decreases significantly, so that the electromagnetic coil is not excited or insufficiently energized, the moving iron core will be released from the static iron core by the reverse force of the release spring because the electromagnetic suction force disappears or is too small. At the same time, the moving contacts that are fixedly installed with the moving iron core are also separated from the static contacts, so that the motor is disconnected from the power supply and the operation is stopped. This is the so-called undervoltage protection. Ball Mill Liner,Liner Plate Ball Mill Spare Parts,Liners Industrial Ball Mill Plate,Mill Liner Mill Spare Parts Wuyi Slon Machinery Co.,Ltd , https://www.selongmachinery.com