8D021M72PN-LC

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8D021M72PN-LC is a type of advanced industrial relay, which has the special features of wide voltage, high sensitivity, exquisite light weight and small in size. With these advantageous features, 8D021M72PN-LC is widely used in various domains.

The application field mainly covers consumer electronic products, various types of alarm system, safety protection of pipeline and electrical power, military products, remote control, industrial automation equipments and etc. It can be seen that, 8D021M72PN-LC is widely applied in fields of electrical power, industrial automation, transport and communication.

In general, 8D021M72PN-LC is a kind of non-contact, high reliability, shock proof and long-time stability type. First of all, when it is energized, its sensitivity letter P can detect the incoming signals. Then, when the operation voltage is higher than its rated voltage, its contact can be closed. Finally, its rated power supports the rated impressed current, and its rated current supports the basic current.

The 8D021M72PN-LC comes with a strong working principle, which is based on the contact holder of lamp touching the contact, its coil being energized and its duty current being increased to drive the contact holder of lamp to the contact, resulting in the connection of the contact. Thus, when the voltage applied to the coil is larger than or equal to the rated voltage, the contact would be closed. On the contrary, if the current of the coil becomes zero, the contact holder of lamp would be attracted inversely to reset automatically.

In normal condition, 8D021M72PN-LC will close the contact when the voltage is greater than its specified set-point. When the voltage goes below the specified point, due to a mechanical-electrical coupling characteristic of a time delay, the contact may remain closed for some time. After the time delay passes, the contact will be opened automatically. Both of these functions improve the stability and reliability of 8D021M72PN-LC, which is an ideal passive electrical device.

In addition, due to its advanced circuitry, 8D021M72PN-LC has very good sensitivity and low power consumption. When the voltage is below the set-point for a few seconds, the contact will be opened automatically. Also, the mechanical-electrical coupling characteristic of 8D021M72PN-LC allows for a longer life expectancy than other types of relays. It can serve a longer life in harsh environment, like high temperature, high humidity and vibration.

All in all, 8D021M72PN-LC is one of the most common and important types of industrial relay, playing a vital role in the fields of consumer electronics, alarms, safety protection and industrial automation. With its wide voltage, high sensitivity, delicate design and long-term stability, 8D021M72PN-LC provides us with great convenience and security.

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