Electromechanical relays have a coil of wire with a rod passing through the middle (forming an electromagnet), an armature mechanism, and one or more sets of contacts.
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美
- 机电式继电器有一个中间穿过一根金属棒的线圈(形成一个电磁铁)、一个枢轴机构和一组或多组触点组成。