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The role of metal contacts in relays
Release Time:
Mar 18,2024
The role of thermal relay contacts The contacts of thermal relays are mainly divided into two types: dynamic contacts and static contacts. Among them, the moving contacts are usually made of copper, which are usually used to control switches with large currents, such as motors. Static contacts, on the other hand, are mainly made of silver alloy and are used to control small current switches, such as bulbs, relays, etc. Its specific functions are as follows: 1. Circuit on: When the electric heating element expands to a certain extent, the contact will be closed, and the circuit will be turned on. This is when the electrical equipment is activated. 2. Cut off the circuit: When the heating element cools down and shrinks, the contacts also open, cutting off the circuit. At this time, the electrical equipment stops running. 3. Control current: The contact can control the current in the circuit, so as to achieve precise control of electrical equipment. Conclusion As an important part of thermal relays, thermal relay contacts are mainly used to control the opening and closing of circuits and the size of current. Through its own characteristics, the electrical equipment can be automatically controlled, which greatly facilitates the practical application in production and life.
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Taizhou Yinde Technology Co., Ltd. was established in 1998. It specializes in electrical contact materials for “heart components” of low-voltage electrical appliances, including three series of products: contact materials, multi-layer contacts, and contact components.
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