ZJSHUYI Can the DC-AC base of the intermediate relay be universal?www.sh...
Whether the intermediate relay is DC or AC, the working principle is the same, the only difference is the voltage level. The working principle of the intermediate relay is the same as that of the relay and the AC contactor. When the contactor coil is energized, the coil current will generate a magnetic field, and the generated magnetic field will cause the static iron core to generate electromagnetic attraction to attract the moving iron core and drive the AC contactor point action, normally closed contact is disconnected, normally open contact is closed, the two are linked. When the coil is powered off, the electromagnetic attraction disappears, and the armature is released under the action of the release spring, so that the contacts are restored, the normally open contacts are disconnected, and the normally closed contacts are closed.
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