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Reed Relays

DBT71210-HR Application Field and Working Principle

Reed relays are electro-magnetic relays that have a hermetically sealed reed switch inside. The reed switch is held in a non-metallic body, which can be active for many years without failure. The metal contacts of the reed switch are less prone to corrosion than mechanical contacts. This makes reed relays reliable over long periods of time, making them suited to applications requiring low power consumption.

In the application of DBT71210-HR, reed relays play an important role. This is a heavy-duty relay designed for applications such as vibration, moisture, salt spray, and dust environments. It has a contact voltage rating of 1,000V AC, and a current rating up to 5A. It is designed for a wide range of high reliability, high power applications, such as high quality communications, electronic control systems, and power distribution.

The working principle of DBT71210-HR is based on the contact-making and breaking action of the reed switch inside the relay. This reed switch is activated by an electromagnetic field, consisting of a coil and iron core. When the coil is energized, the iron core creates an electromagnetic field and a current is induced in the reed switch. This current creates an attractive force between the two contacts of the reed switch, resulting in the closure of the switch. The current flowing in the coil is proportional to the load on the contacts, and this is used to control the current flow through the relay.

When the load is removed, the attractive force between the two contacts of the reed switch is reduced, resulting in the opening of the switch. The current flowing in the coil is reduced and the relay is returned to its resting state. This cycle is repeated every time the relay is switched on. This is the working principle of DBT71210-HR.

Reed relays are used in many applications, such as industrial control, automotive, and medical equipment. It is also used in computers, telecommunication, and home appliances. Due to its high reliability and low power requirements, it is the best choice for applications requiring low power consumption and long life. DBT71210-HR is an example of a high-reliability, high power relay, suitable for a variety of applications.

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